import { Observable } from 'rxjs';
import { Readable } from 'stream';
import * as colorette from 'colorette';

/**
 * Indicates an UNICODE characters is coming up.
 */
declare const ANSI_ESCAPE = "\u001B[";
/**
 * Generic ANSI escape characters for terminal based operations.
 */
declare const ANSI_ESCAPE_CODES: {
    CURSOR_HIDE: string;
    CURSOR_SHOW: string;
};

/**
 * Environment variables for Listr.
 */
declare enum ListrEnvironmentVariables {
    FORCE_UNICODE = "LISTR_FORCE_UNICODE",
    FORCE_TTY = "LISTR_FORCE_TTY",
    DISABLE_COLOR = "NO_COLOR",
    FORCE_COLOR = "FORCE_COLOR"
}

/**
 * The actual error type that is collected and to help identify where the error is triggered from.
 */
declare enum ListrErrorTypes {
    /** Task has failed and will try to retry. */
    WILL_RETRY = "WILL_RETRY",
    /** Task has failed and will try to rollback. */
    WILL_ROLLBACK = "WILL_ROLLBACK",
    /** Task has failed, ran the rollback action but the rollback action itself has failed. */
    HAS_FAILED_TO_ROLLBACK = "HAS_FAILED_TO_ROLLBACK",
    /** Task has failed. */
    HAS_FAILED = "HAS_FAILED",
    /** Task has failed, but exitOnError is set to false, so will ignore this error. */
    HAS_FAILED_WITHOUT_ERROR = "HAS_FAILED_WITHOUT_ERROR"
}

/**
 * Events that are triggered by Listr.
 *
 * These are stateful and singleton events by being attached to the main Listr class and propagating to the subtasks.
 *
 * @see {@link https://listr2.kilic.dev/listr/events.html}
 */
declare enum ListrEventType {
    /** Indicates that underlying renderer should refresh the current render. */
    SHOULD_REFRESH_RENDER = "SHOUD_REFRESH_RENDER"
}

declare enum ListrRendererSelection {
    PRIMARY = "PRIMARY",
    SECONDARY = "SECONDARY",
    SILENT = "SILENT"
}

/**
 * Internal events that are fired from the Task.
 *
 * @see {@link https://listr2.kilic.dev/task/events.html}
 */
declare enum ListrTaskEventType {
    /** Title has changed for the current Task. */
    TITLE = "TITLE",
    /**
     * State has changed for the current Task.
     *
     * @see {@link module:listr2.ListrTaskState}
     */
    STATE = "STATE",
    /** The current Task has been marked as enabled. */
    ENABLED = "ENABLED",
    /** The current Task is currently processing subtasks. */
    SUBTASK = "SUBTASK",
    /** The current Task is now processing a prompt. */
    PROMPT = "PROMPT",
    /** The current Task is now dumping output. */
    OUTPUT = "OUTPUT",
    /**
     * The current Task is now dumping a message.
     *
     * @see {module:Listr2.ListrTaskMessage}
     */
    MESSAGE = "MESSAGE",
    /** The current Task is closed and no further action in expected. */
    CLOSED = "CLOSED"
}

/**
 * Tasks can be in various states during the execution.
 *
 * Whenever a state change occurs, the task will emit a {@link module:listr2.ListrTaskEventType.STATE} with the appropriate state.
 */
declare enum ListrTaskState {
    /** Task has not started yet, waiting for pick-up. */
    WAITING = "WAITING",
    /** Task has started. */
    STARTED = "STARTED",
    /** Task has been completed. */
    COMPLETED = "COMPLETED",
    /** Task has failed. */
    FAILED = "FAILED",
    /** Task has been skipped. */
    SKIPPED = "SKIPPED",
    /** Task is currently trying to rollback. */
    ROLLING_BACK = "ROLLING_BACK",
    /** Task has rolledback successfully after failing. */
    ROLLED_BACK = "ROLLED_BACK",
    /** Task is currently retrying. */
    RETRY = "RETRY",
    /** Task is currently paused. */
    PAUSED = "PAUSED",
    /** Task is currently trying to process a prompt. */
    PROMPT = "PROMPT",
    /** Task has successfully processed the prompt. */
    PROMPT_COMPLETED = "PROMPT_COMPLETED",
    /** Task has failed to process the prompt. */
    PROMPT_FAILED = "PROMPT_FAILED"
}

/**
 * Give event map a set of indexes to not make it go crazy when some events are missing from it.
 * They are optional after all.
 */
declare class BaseEventMap {
    [k: string]: any;
}
/**
 * Parameters for the given event in the {@link EventMap}.
 */
type EventData<Event extends string, Map extends Record<string, unknown>> = Event extends keyof Map ? Map[Event] : never;
/**
 * An event map of given events that defined the parameters and return types for firing a certain event.
 */
type EventMap<Events extends string> = Partial<Record<Events, unknown>>;

declare class EventManager<Event extends string = string, Map extends Partial<Record<Event, unknown>> = Partial<Record<Event, any>>> {
    private readonly emitter;
    emit<E extends Event = Event>(dispatch: E, args?: EventData<E, Map>): void;
    on<E extends Event = Event>(dispatch: E, handler: (data: EventData<E, Map>) => void): void;
    once<E extends Event = Event>(dispatch: E, handler: (data: EventData<E, Map>) => void): void;
    off<E extends Event = Event>(dispatch: E, handler?: (data: EventData<E, Map>) => void): void;
    complete(): void;
}

/**
 * Tests to see if the object is an RxJS {@link Observable}
 * @param obj the object to test
 */
declare function isObservable<T>(obj: any): obj is {
    subscribe: T;
    next: any;
    error: any;
    complete: any;
};

declare function isUnicodeSupported(): boolean;

declare function cleanseAnsi(chunk: string): string;

/**
 * Creates color palette through underlying dependency of `colorette`.
 *
 * @see {@link https://www.npmjs.com/package/colorette}
 */
declare const color: colorette.Colorette;

declare function indent(string: string, count: number): string;

declare const FIGURES_MAIN: {
    warning: string;
    cross: string;
    arrowDown: string;
    tick: string;
    arrowRight: string;
    pointer: string;
    checkboxOn: string;
    arrowLeft: string;
    squareSmallFilled: string;
    pointerSmall: string;
};
type Figures = typeof FIGURES_MAIN;
declare const figures: Figures;

declare function splat(message: string, ...splat: any[]): string;

/**
 * Creates a new Listr2 logger.
 *
 * This logger is used throughout the renderers for consistency.
 *
 * @see {@link https://listr2.kilic.dev/renderer/logger.html}
 */
declare class ListrLogger<Levels extends string = string> {
    options?: ListrLoggerOptions<Levels>;
    readonly process: ProcessOutput;
    constructor(options?: ListrLoggerOptions<Levels>);
    log(level: Levels, message: string | any[], options?: LoggerFieldOptions): void;
    toStdout(message: string | any[], options?: LoggerFieldOptions, eol?: boolean): void;
    toStderr(message: string | any[], options?: LoggerFieldOptions, eol?: boolean): void;
    wrap(message: string, options?: LoggerFormatOptions): string;
    splat(...args: Parameters<typeof splat>): ReturnType<typeof splat>;
    suffix(message: string, ...suffixes: LoggerField[]): string;
    prefix(message: string, ...prefixes: LoggerField[]): string;
    fields(message: string, options?: LoggerFieldOptions<true>): string;
    icon(level: Levels, icon?: string | false): string;
    protected format(level: Levels, message: string | any[], options?: LoggerFieldOptions): string;
    protected style(level: Levels, message: string): string;
    protected applyFormat(message: string, options?: LoggerFormatOptions): string;
    protected spacing(message: string | undefined): string;
}

/**
 * Options for the logger
 */
interface ListrLoggerOptions<Levels extends string> extends ProcessOutputRendererOptions, ListrLoggerStyleMap<Levels | string> {
    /**
     * Use icons for the log levels.
     */
    useIcons?: boolean;
    /**
     * Apply fields and templates as presets before and after each message.
     */
    fields?: LoggerFieldOptions<true>;
    /**
     * Send the designated levels to `process.stderr`.
     */
    toStderr?: (Levels | string)[];
}
/**
 * Inject your custom style map consisting of icons and coloring for the ListrLogger.
 *
 * @see {@link https://listr2.kilic.dev/renderer/logger.html}
 */
interface ListrLoggerStyleMap<Levels extends string> {
    /**
     * Coloring of the levels.
     *
     * @see {@link https://listr2.kilic.dev/renderer/logger.html#style}
     */
    color?: Partial<Record<Levels, LoggerFormat>>;
    /**
     * Icons of the levels.
     *
     * @see {@link https://listr2.kilic.dev/renderer/logger.html#style}
     */
    icon?: Partial<Record<Levels, string>>;
}
interface LoggerFieldOptions<MultipleOnly extends boolean = false> {
    /**
     * Prefix fields for the log entry.
     */
    prefix?: MultipleOnly extends false ? LoggerField | LoggerField[] : LoggerField[];
    /**
     * Suffix fields for the log entry.
     */
    suffix?: MultipleOnly extends false ? LoggerField | LoggerField[] : LoggerField[];
}
type LoggerFormat = (message?: string) => string;
interface LoggerFieldFn<Args extends any[] = any[]> {
    /**
     * The value of the given field.
     */
    field: ((...args: Args) => string) | string;
    /**
     * Condition to display the given field.
     */
    condition?: ((...args: Args) => boolean) | boolean;
    /**
     * Formatting/coloring of the field.
     */
    format?: (...args: Args) => LoggerFormat;
    /**
     * Args to pass to other functions whenever this field is triggered.
     */
    args?: Args;
}
type LoggerField<Args extends any[] = any[]> = LoggerFieldFn<Args> | string;
interface RendererLoggerOptions<Levels extends string> {
    /**
     * Inject your custom implementation of the ListrLogger.
     *
     * @see {@link https://listr2.kilic.dev/renderer/logger.html}
     */
    logger?: ListrLogger<Levels>;
}
interface LoggerFormatOptions {
    format?: LoggerFormat;
}

/** Default ListrLogLevels for the logger */
declare enum ListrLogLevels {
    STARTED = "STARTED",
    COMPLETED = "COMPLETED",
    FAILED = "FAILED",
    SKIPPED = "SKIPPED",
    OUTPUT = "OUTPUT",
    TITLE = "TITLE",
    ROLLBACK = "ROLLBACK",
    RETRY = "RETRY",
    PROMPT = "PROMPT",
    PAUSED = "PAUSED"
}
declare const LISTR_LOGGER_STYLE: ListrLoggerStyleMap<ListrLogLevels>;
declare const LISTR_LOGGER_STDERR_LEVELS: ListrLogLevels[];

interface ProcessOutputBufferEntry {
    time: number;
    entry: string;
    stream?: NodeJS.WriteStream;
}
interface ProcessOutputBufferOptions {
    limit?: number;
    stream?: NodeJS.WriteStream;
}

declare class ProcessOutputBuffer {
    private readonly options?;
    private buffer;
    private readonly decoder;
    constructor(options?: ProcessOutputBufferOptions);
    get all(): ProcessOutputBufferEntry[];
    get last(): ProcessOutputBufferEntry;
    get length(): number;
    write(data: Uint8Array | string, ...args: [(string | undefined)?, ((err?: Error) => void)?] | [((err?: Error) => void)?]): ReturnType<NodeJS.WriteStream['write']>;
    reset(): void;
}

declare class ProcessOutputStream {
    private stream;
    private readonly method;
    private readonly buffer;
    constructor(stream: NodeJS.WriteStream);
    get out(): NodeJS.WriteStream;
    hijack(): void;
    release(): ProcessOutputBufferEntry[];
    write(...args: Parameters<NodeJS.WriteStream['write']>): ReturnType<NodeJS.WriteStream['write']>;
}

interface ProcessOutputRendererOptions {
    /**
     * Pass your implementation of process output class to write to stdout and stderr.
     *
     * @default 'ProcessOutput'
     * @global global option that can not be temperated with subtasks
     */
    processOutput?: ProcessOutput;
}
/**
 * Customize the behavior of the ProcessOutput.
 */
interface ProcessOutputOptions {
    /**
     * After the `ProcessOutput.release()` which streams should be dumped.
     *
     * @defaultValue `[ 'stdout', 'stderr' ]`
     */
    dump?: (keyof ProcessOutputStreamMap)[];
    /**
     * After the `ProcessOutput.release()` whether to leave empty line or not.
     *
     * @defaultValue `true`
     */
    leaveEmptyLine?: boolean;
}
type ProcessOutputStreamMap = Record<'stdout' | 'stderr', ProcessOutputStream>;

/**
 * Creates a new Listr2 process-output controller.
 *
 * This is used to control the flow to `process.stdout` and `process.stderr` for all renderers.
 *
 * @see {@link https://listr2.kilic.dev/renderer/process-output.html}
 */
declare class ProcessOutput {
    private readonly options?;
    readonly stream: ProcessOutputStreamMap;
    protected active: boolean;
    constructor(stdout?: NodeJS.WriteStream, stderr?: NodeJS.WriteStream, options?: ProcessOutputOptions);
    get stdout(): NodeJS.WriteStream;
    get stderr(): NodeJS.WriteStream;
    hijack(): void;
    release(): void;
    toStdout(buffer: string, eol?: boolean): boolean;
    toStderr(buffer: string, eol?: boolean): boolean;
}

declare function createWritable(cb: (chunk: string) => void): NodeJS.WritableStream;

declare abstract class ListrPromptAdapter {
    protected task: Task<any, any, any>;
    protected wrapper: TaskWrapper<any, any, any>;
    private state;
    constructor(task: Task<any, any, any>, wrapper: TaskWrapper<any, any, any>);
    protected reportStarted(): void;
    protected reportFailed(): void;
    protected reportCompleted(): void;
    protected restoreState(): void;
    abstract run<T = any>(...args: any[]): T | Promise<T>;
}

declare class Spinner {
    protected readonly spinner: string[];
    private id?;
    private spinnerPosition;
    spin(): void;
    fetch(): string;
    isRunning(): boolean;
    start(cb?: () => void, interval?: number): void;
    stop(): void;
}

declare function getRendererClass(renderer: ListrRendererValue): ListrRendererFactory;
declare function getRenderer<Renderer extends ListrRendererValue, FallbackRenderer extends ListrRendererValue>(options: {
    renderer: Renderer;
    rendererOptions: ListrGetRendererOptions<Renderer>;
    fallbackRenderer: FallbackRenderer;
    fallbackRendererOptions: ListrGetRendererOptions<FallbackRenderer>;
    fallbackRendererCondition?: ListrOptions['fallbackRendererCondition'];
    silentRendererCondition?: ListrOptions['silentRendererCondition'];
}): SupportedRenderer<ListrRendererFactory>;

/**
 * This function asserts the given value as a function or itself.
 * If the value itself is a function it will evaluate it with the passed in arguments,
 * elsewise it will directly return itself.
 */
declare function assertFunctionOrSelf<T>(functionOrSelf: T, ...args: T extends (...args: any[]) => any ? Parameters<T> : never): T extends (...args: any[]) => any ? ReturnType<T> : T;

/**
 * Deep clones a object in the easiest manner.
 */
declare function cloneObject<T extends Record<PropertyKey, any>>(obj: T): T;

declare class Concurrency {
    private concurrency;
    private count;
    private queue;
    constructor(options: {
        concurrency: number;
    });
    add<T>(fn: () => Promise<T>): Promise<T>;
    private flush;
    private run;
}

declare function delay(time: number): Promise<void>;

/**
 * The original Task that is defined by the user is wrapped with the TaskWrapper to provide additional functionality.
 *
 * @see {@link https://listr2.kilic.dev/task/task.html}
 */
declare class TaskWrapper<Ctx, Renderer extends ListrRendererFactory, FallbackRenderer extends ListrRendererFactory> {
    task: Task<Ctx, Renderer, FallbackRenderer>;
    constructor(task: Task<Ctx, Renderer, FallbackRenderer>);
    get title(): string;
    /**
     * Title of the current task.
     *
     * @see {@link https://listr2.kilic.dev/task/title.html}
     */
    set title(title: string | any[]);
    get output(): string;
    /**
     * Send output from the current task to the renderer.
     *
     * @see {@link https://listr2.kilic.dev/task/output.html}
     */
    set output(output: string | any[]);
    /** Send an output to the output channel as prompt. */
    private set promptOutput(value);
    /**
     * Creates a new set of Listr subtasks.
     *
     * @see {@link https://listr2.kilic.dev/task/subtasks.html}
     */
    newListr<NewCtx = Ctx>(task: ListrTask<NewCtx, Renderer, FallbackRenderer> | ListrTask<NewCtx, Renderer, FallbackRenderer>[] | ((parent: Omit<this, 'skip' | 'enabled'>) => ListrTask<NewCtx, Renderer, FallbackRenderer> | ListrTask<NewCtx, Renderer, FallbackRenderer>[]), options?: ListrSubClassOptions<NewCtx, Renderer, FallbackRenderer>): Listr<NewCtx, any, any>;
    /**
     * Report an error that has to be collected and handled.
     *
     * @see {@link https://listr2.kilic.dev/task/error-handling.html}
     */
    report(error: Error, type: ListrErrorTypes): void;
    /**
     * Skip the current task.
     *
     * @see {@link https://listr2.kilic.dev/task/skip.html}
     */
    skip(message?: string, ...metadata: any[]): void;
    /**
     * Check whether this task is currently in a retry state.
     *
     * @see {@link https://listr2.kilic.dev/task/retry.html}
     */
    isRetrying(): Task<Ctx, Renderer, FallbackRenderer>['retry'];
    /**
     * Create a new prompt for getting user input through the prompt adapter.
     * This will create a new prompt through the adapter if the task is not currently rendering a prompt or will return the active instance.
     *
     * This part of the application requires optional peer dependencies, please refer to documentation.
     *
     * @see {@link https://listr2.kilic.dev/task/prompt.html}
     */
    prompt<T extends ListrPromptAdapter = ListrPromptAdapter>(adapter: new (task: Task<Ctx, Renderer, FallbackRenderer>, wrapper: TaskWrapper<Ctx, Renderer, FallbackRenderer>) => T): T;
    /**
     * Generates a fake stdout for your use case, where it will be tunnelled through Listr to handle the rendering process.
     *
     * @see {@link https://listr2.kilic.dev/renderer/process-output.html}
     */
    stdout(type?: ListrTaskEventType.OUTPUT | ListrTaskEventType.PROMPT): NodeJS.WritableStream;
    /** Run this task. */
    run(ctx: Ctx): Promise<void>;
}

declare class ListrTaskEventManager extends EventManager<ListrTaskEventType, ListrTaskEventMap> {
}

/**
 * Creates and handles a runnable instance of the Task.
 */
declare class Task<Ctx, Renderer extends ListrRendererFactory = ListrRendererFactory, FallbackRenderer extends ListrRendererFactory = ListrRendererFactory> extends ListrTaskEventManager {
    listr: Listr<Ctx, Renderer, FallbackRenderer>;
    task: ListrTask<Ctx, Renderer, FallbackRenderer>;
    options: ListrOptions;
    rendererOptions: ListrGetRendererOptions<Renderer> | ListrGetRendererOptions<FallbackRenderer>;
    /** Per-task options for the current renderer of the task. */
    rendererTaskOptions: ListrGetRendererTaskOptions<Renderer> | ListrGetRendererTaskOptions<FallbackRenderer>;
    /** Unique id per task, can be used for identifying a Task. */
    id: string;
    /** The current state of the task. */
    state: ListrTaskState;
    /** Subtasks of the current task. */
    subtasks: Task<Ctx, Renderer, FallbackRenderer>[];
    /** Title of the task. */
    title?: string;
    /** Initial/Untouched version of the title for using whenever task has a reset. */
    readonly initialTitle?: string;
    /** Output channel for the task. */
    output?: string;
    /** Current state of the retry process whenever the task is retrying. */
    retry?: ListrTaskRetry;
    /**
     * A channel for messages.
     *
     * This requires a separate channel for messages like error, skip or runtime messages to further utilize in the renderers.
     */
    message: ListrTaskMessage;
    /** Current prompt instance or prompt error whenever the task is prompting. */
    prompt: ListrTaskPrompt;
    /** Parent task of the current task. */
    parent?: Task<Ctx, any, any>;
    /** Enable flag of this task. */
    private enabled;
    /** User provided Task callback function to run. */
    private taskFn;
    /** Marks the task as closed. This is different from finalized since this is not really related to task itself. */
    private closed;
    constructor(listr: Listr<Ctx, Renderer, FallbackRenderer>, task: ListrTask<Ctx, Renderer, FallbackRenderer>, options: ListrOptions, rendererOptions: ListrGetRendererOptions<Renderer> | ListrGetRendererOptions<FallbackRenderer>, 
    /** Per-task options for the current renderer of the task. */
    rendererTaskOptions: ListrGetRendererTaskOptions<Renderer> | ListrGetRendererTaskOptions<FallbackRenderer>);
    /**
     * Update the current state of the Task and emit the neccassary events.
     */
    set state$(state: ListrTaskState);
    /**
     * Update the current output of the Task and emit the neccassary events.
     */
    set output$(data: string);
    /**
     * Update the current prompt output of the Task and emit the neccassary events.
     */
    set promptOutput$(data: string);
    /**
     * Update or extend the current message of the Task and emit the neccassary events.
     */
    set message$(data: Task<Ctx, Renderer, FallbackRenderer>['message']);
    /**
     * Update the current title of the Task and emit the neccassary events.
     */
    set title$(title: string);
    /**
     * Current task path in the hierarchy.
     */
    get path(): string[];
    /**
     * Checks whether the current task with the given context should be set as enabled.
     */
    check(ctx: Ctx): Promise<boolean>;
    /** Returns whether this task has subtasks. */
    hasSubtasks(): boolean;
    /** Returns whether this task is finalized in someform. */
    hasFinalized(): boolean;
    /** Returns whether this task is in progress. */
    isPending(): boolean;
    /** Returns whether this task has started. */
    isStarted(): boolean;
    /** Returns whether this task is skipped. */
    isSkipped(): boolean;
    /** Returns whether this task has been completed. */
    isCompleted(): boolean;
    /** Returns whether this task has been failed. */
    hasFailed(): boolean;
    /** Returns whether this task has an active rollback task going on. */
    isRollingBack(): boolean;
    /** Returns whether the rollback action was successful. */
    hasRolledBack(): boolean;
    /** Returns whether this task has an actively retrying task going on. */
    isRetrying(): boolean;
    /** Returns whether this task has some kind of reset like retry and rollback going on. */
    hasReset(): boolean;
    /** Returns whether enabled function resolves to true. */
    isEnabled(): boolean;
    /** Returns whether this task actually has a title. */
    hasTitle(): boolean;
    /** Returns whether this task has a prompt inside. */
    isPrompt(): boolean;
    /** Returns whether this task is currently paused. */
    isPaused(): boolean;
    /** Returns whether this task is closed. */
    isClosed(): boolean;
    /** Pause the given task for certain time. */
    pause(time: number): Promise<void>;
    /** Run the current task. */
    run(context: Ctx, wrapper: TaskWrapper<Ctx, Renderer, FallbackRenderer>): Promise<void>;
    private close;
}

declare class ListrEventManager extends EventManager<ListrEventType, ListrEventMap> {
}

declare enum ListrDefaultRendererLogLevels {
    SKIPPED_WITH_COLLAPSE = "SKIPPED_WITH_COLLAPSE",
    SKIPPED_WITHOUT_COLLAPSE = "SKIPPED_WITHOUT_COLLAPSE",
    OUTPUT = "OUTPUT",
    OUTPUT_WITH_BOTTOMBAR = "OUTPUT_WITH_BOTTOMBAR",
    PENDING = "PENDING",
    COMPLETED = "COMPLETED",
    COMPLETED_WITH_FAILED_SUBTASKS = "COMPLETED_WITH_FAILED_SUBTASKS",
    COMPLETED_WITH_FAILED_SISTER_TASKS = "COMPLETED_WITH_SISTER_TASKS_FAILED",
    RETRY = "RETRY",
    ROLLING_BACK = "ROLLING_BACK",
    ROLLED_BACK = "ROLLED_BACK",
    FAILED = "FAILED",
    FAILED_WITH_FAILED_SUBTASKS = "FAILED_WITH_SUBTASKS",
    WAITING = "WAITING",
    PAUSED = "PAUSED"
}
declare const LISTR_DEFAULT_RENDERER_STYLE: ListrLoggerStyleMap<ListrDefaultRendererLogLevels>;

declare class DefaultRenderer implements ListrRenderer {
    private readonly tasks;
    private readonly options;
    private readonly events;
    static nonTTY: boolean;
    static rendererOptions: ListrDefaultRendererOptions;
    static rendererTaskOptions: ListrDefaultRendererTaskOptions;
    private prompt;
    private activePrompt;
    private readonly spinner;
    private readonly logger;
    private updater;
    private truncate;
    private wrap;
    private readonly buffer;
    private readonly cache;
    constructor(tasks: ListrDefaultRendererTask[], options: ListrDefaultRendererOptions, events: ListrEventManager);
    render(): Promise<void>;
    update(): void;
    end(): void;
    create(options?: {
        tasks?: boolean;
        bottomBar?: boolean;
        prompt?: boolean;
    }): string;
    protected style(task: ListrDefaultRendererTask, output?: boolean): string;
    protected format(message: string, icon: string, level: number): string[];
    protected shouldOutputToOutputBar(task: ListrDefaultRendererTask): boolean;
    protected shouldOutputToBottomBar(task: ListrDefaultRendererTask): boolean;
    private renderer;
    private renderOutputBar;
    private renderBottomBar;
    private renderPrompt;
    private calculate;
    private setupBuffer;
    private reset;
    private dump;
    private indent;
}

type PresetTimer = LoggerFieldFn<[number]>;
interface RendererPresetTimer {
    /**
     * Show duration for the tasks.
     */
    timer?: PresetTimer;
}

declare const PRESET_TIMER: PresetTimer;

/**
 * A basic function to parse minutes and tasks passed given a duration.
 * Useful for renderers to show the task time.
 */
declare function parseTimer(duration: number): string;

type PresetTimestamp = LoggerFieldFn;
interface RendererPresetTimestamp {
    /**
     * Show timestamp for each event that has been logged.
     */
    timestamp?: PresetTimestamp;
}

declare const PRESET_TIMESTAMP: PresetTimestamp;

declare function parseTimestamp(): string;

type ListrDefaultRendererOptionsStyle = ListrLoggerStyleMap<ListrDefaultRendererLogLevels>;
type ListrDefaultRendererTask = ListrRendererTask<typeof DefaultRenderer>;
interface ListrDefaultRendererOptions extends RendererPresetTimer, RendererLoggerOptions<ListrDefaultRendererLogLevels>, ListrLoggerStyleMap<ListrDefaultRendererLogLevels> {
    /**
     * Indentation per-level.
     *
     * - This is a global option that can only be changed through the main Listr class.
     *
     * @defaultValue `2`
     */
    indentation?: number;
    /**
     * Formats the output in to the given lines of `process.stdout.columns`.
     *
     * - This is a global option that can only be changed through the main Listr class.
     *
     * @defaultValue `'wrap'`
     */
    formatOutput?: 'truncate' | 'wrap';
    /**
     * Clear all the output generated by the renderer when the Listr completes the execution successfully.
     *
     * - This is a global option that can only be changed through the main Listr class.
     *
     * @defaultValue `false`
     */
    clearOutput?: boolean;
    /**
     * Only update the render whenever there is a incoming request through the hook.
     *
     * - This is a global option that can only be changed through the main Listr class.
     * - Useful for snapshot tests, where this will disable showing spinner and only update the screen if something else has happened in the task worthy to show.
     *
     * @defaultValue `false`
     */
    lazy?: boolean;
    /**
     * Remove empty lines from the output section for decluterring multiple line output.
     *
     * @defaultValue `true`
     */
    removeEmptyLines?: boolean;
    /**
     * Spinner visually indicates that a task is running.
     *
     * - You can always implement your own spinner, if the current one does not please you visually.
     */
    spinner?: Spinner;
    /**
     * Show the subtasks of the current task.
     *
     * @defaultValue `true`
     */
    showSubtasks?: boolean;
    /**
     * Collapse subtasks after current task completes its execution.
     *
     * @defaultValue `true`
     */
    collapseSubtasks?: boolean;
    /**
     * Show skip messages or show the original title of the task.
     *
     * - `true` will output the given skip message if there is any.
     * - `false` will keep the current task title intact. This will also disable `collapseSkips`.
     *
     * @defaultValue `true`
     */
    showSkipMessage?: boolean;
    /**
     * Collapse skip messages into a single message and overwrite the task title.
     *
     * - `true` will collapse skiped tasks.
     * - `false` will show the skip message as a data output under the current task title.
     *
     * @defaultValue `true`
     */
    collapseSkips?: boolean;
    /**
     * Suffix skip messages to clearly indicate the task has been skipped with in `collapseSkips` mode.
     *
     * - `true` will add `[SKIPPED]` as a suffix.
     * - `false` will not add a suffix.
     *
     * @defaultValue `false`
     */
    suffixSkips?: boolean;
    /**
     * Show the error message or show the original title of the task.
     *
     * - `true` will output the current error encountered with the task if there is any.
     * - `false` will keep the current task title intact. This will also disable `collapseErrors`.
     *
     * @defaultValue `true`
     */
    showErrorMessage?: boolean;
    /**
     * Collapse error messages into a single message and overwrite the task title.
     *
     * - `true` will collapse the error message.
     * - `false` will show the error message as a data output under the current task title.
     *
     * @defaultValue `true`
     */
    collapseErrors?: boolean;
    /**
     * Suffix retry messages to clearly indicate the task is currently retrying.
     *
     * - `true` will add `[RETRY:COUNT]` as a suffix.
     * - `false` will not add a suffix.
     *
     * @defaultValue `false`
     */
    suffixRetries?: boolean;
    /**
     * Show duration for the pauses.
     *
     * @defaultValue `PRESET_TIMER`
     */
    pausedTimer?: PresetTimer;
}
interface ListrDefaultRendererTaskOptions extends RendererPresetTimer {
    /**
     * Write task output to the output bar under the title.
     *
     * - `true` only keep the last line.
     * - `Infinity` will keep all the lines.
     * - `number` will keep the defined amount of lines.
     * - `false` will not render output with this method.
     *
     * @defaultValue `true`
     */
    outputBar?: boolean | number;
    /**
     * Write task output to the bottom bar instead of the gap under the task title itself.
     * This can be useful for stream of data coming in and is the default mode for tasks without a title.
     *
     * This will take	precedence over the `outputBar` option, if explicitly set.
     *
     * - `true` only keep the last line.
     * - `Infinity` will keep all the lines.
     * - `number` will keep the defined amount of lines.
     * - `false` will not render output with this method.
     *
     * @defaultValue `false`
     */
    bottomBar?: boolean | number;
    /**
     * Keep output of the task after task finishes.
     *
     * - This can be enabled for both normal task output under the title and bottom bar.
     *
     * @defaultValue false
     */
    persistentOutput?: boolean;
}
interface ListrDefaultRendererCache {
    render: ListrRendererCacheMap<string[]>;
    rendererOptions: ListrRendererCacheMap<ListrDefaultRendererOptions>;
    rendererTaskOptions: ListrRendererCacheMap<ListrDefaultRendererTaskOptions>;
}
interface ListrDefaultRendererOutputBuffer {
    output: ListrRendererCacheMap<ProcessOutputBuffer>;
    bottom: ListrRendererCacheMap<ProcessOutputBuffer>;
}

declare class SilentRenderer implements ListrRenderer {
    tasks: ListrSilentRendererTask[];
    options: ListrSilentRendererOptions;
    static nonTTY: boolean;
    static rendererOptions: ListrSilentRendererOptions;
    static rendererTaskOptions: ListrSilentRendererTaskOptions;
    constructor(tasks: ListrSilentRendererTask[], options: ListrSilentRendererOptions);
    render(): void;
    end(): void;
}

type ListrSilentRendererTask = ListrRendererTask<typeof SilentRenderer>;
type ListrSilentRendererOptions = never;
type ListrSilentRendererTaskOptions = never;

declare class SimpleRenderer implements ListrRenderer {
    private readonly tasks;
    private options;
    static nonTTY: boolean;
    static rendererOptions: ListrSimpleRendererOptions;
    static rendererTaskOptions: ListrSimpleRendererTaskOptions;
    private readonly logger;
    private readonly cache;
    constructor(tasks: ListrSimpleRendererTask[], options: ListrSimpleRendererOptions);
    end(): void;
    render(): void;
    private renderer;
    private calculate;
    private reset;
}

type ListrSimpleRendererTask = ListrRendererTask<typeof SimpleRenderer>;
interface ListrSimpleRendererOptions extends RendererPresetTimer, RendererPresetTimestamp, RendererLoggerOptions<ListrLogLevels>, ListrLoggerStyleMap<ListrLogLevels> {
    /**
     * Show duration for the pauses.
     *
     * @defaultValue `PRESET_TIMER`
     */
    pausedTimer?: PresetTimer;
}
interface ListrSimpleRendererTaskOptions extends RendererPresetTimer {
}
interface ListrSimpleRendererCache {
    rendererOptions: ListrRendererCacheMap<ListrSimpleRendererOptions>;
    rendererTaskOptions: ListrRendererCacheMap<ListrSimpleRendererTaskOptions>;
}

declare class TestRenderer implements ListrRenderer {
    private readonly tasks;
    private readonly options;
    static nonTTY: boolean;
    static rendererOptions: ListrTestRendererOptions;
    static rendererTaskOptions: ListrTestRendererTaskOptions;
    private readonly logger;
    private serializer;
    constructor(tasks: ListrTestRendererTask[], options: ListrTestRendererOptions);
    render(): void;
    end(): void;
    private renderer;
}

interface TestRendererSerializerOutput<T extends ListrTaskEventType> {
    event: T;
    data: ListrTaskEventMap[T];
    task?: Partial<Record<TestRendererSerializerTaskKeys, unknown>>;
}
type TestRendererSerializerTaskKeys = Extract<keyof ListrRendererTask<typeof TestRenderer>, 'hasSubtasks' | 'hasFinalized' | 'isPending' | 'isStarted' | 'isSkipped' | 'isCompleted' | 'hasFailed' | 'isRollingBack' | 'hasRolledBack' | 'isRetrying' | 'hasReset' | 'isEnabled' | 'hasTitle' | 'isPrompt' | 'isPaused' | 'title' | 'path'>;

type ListrTestRendererTask = ListrRendererTask<typeof TestRenderer>;
interface ListrTestRendererOptions extends RendererLoggerOptions<ListrLogLevels> {
    /**
     * Log subtasks.
     *
     * @defaultValue `true`
     */
    subtasks?: boolean;
    /**
     * Log given task states.
     */
    state?: ListrTaskState[];
    /**
     * Log output.
     */
    output?: boolean;
    /**
     * Log prompt.
     */
    prompt?: boolean;
    /**
     * Log title changes.
     */
    title?: boolean;
    /**
     * Log given messages.
     */
    messages?: (keyof ListrTaskMessage)[];
    /**
     * Log given messages to stderr instead of stdout.
     */
    messagesToStderr?: (keyof ListrTaskMessage)[];
    /**
     * Serialize the given properties of the task inside the logs.
     */
    task?: false | TestRendererSerializerTaskKeys[];
}
type ListrTestRendererTaskOptions = never;

declare class TestRendererSerializer {
    options?: ListrTestRendererOptions;
    constructor(options?: ListrTestRendererOptions);
    serialize<T extends ListrTaskEventType>(event: T, data: ListrTaskEventMap[T], task?: ListrTestRendererTask): string;
    generate<T extends ListrTaskEventType>(event: T, data: ListrTaskEventMap[T], task?: ListrTestRendererTask): TestRendererSerializerOutput<T>;
}

declare class VerboseRenderer implements ListrRenderer {
    private readonly tasks;
    private readonly options;
    static nonTTY: boolean;
    static rendererOptions: ListrVerboseRendererOptions;
    static rendererTaskOptions: ListrVerboseRendererTaskOptions;
    private logger;
    private readonly cache;
    constructor(tasks: ListrVerboseRendererTask[], options: ListrVerboseRendererOptions);
    render(): void;
    end(): void;
    private renderer;
    private calculate;
    private reset;
}

type ListrVerboseRendererTask = ListrRendererTask<typeof VerboseRenderer>;
interface ListrVerboseRendererOptions extends RendererPresetTimer, RendererPresetTimestamp, RendererLoggerOptions<ListrLogLevels>, ListrLoggerStyleMap<ListrLogLevels> {
    /**
     * Log the title changes of the task.
     *
     * @default `false`
     */
    logTitleChange?: boolean;
    /**
     * Show duration for the pauses.
     *
     * @defaultValue `PRESET_TIMER`
     */
    pausedTimer?: PresetTimer;
}
interface ListrVerboseRendererTaskOptions extends RendererPresetTimer {
}
interface ListrVerboseRendererCache {
    rendererOptions: ListrRendererCacheMap<ListrVerboseRendererOptions>;
    rendererTaskOptions: ListrRendererCacheMap<ListrVerboseRendererTaskOptions>;
}

/** Name of the default renderer. */
type ListrDefaultRendererValue = 'default';
/** Type of default renderer. */
type ListrDefaultRenderer = typeof DefaultRenderer;
/** Name of simple renderer. */
type ListrSimpleRendererValue = 'simple';
/** Type of simple renderer. */
type ListrSimpleRenderer = typeof SimpleRenderer;
/** Name of verbose renderer. */
type ListrVerboseRendererValue = 'verbose';
/** Type of verbose renderer. */
type ListrVerboseRenderer = typeof VerboseRenderer;
/** Name of test renderer. */
type ListrTestRendererValue = 'test';
/** Type of test renderer. */
type ListrTestRenderer = typeof TestRenderer;
/** Name of silent renderer. */
type ListrSilentRendererValue = 'silent';
/** Type of silent renderer. */
type ListrSilentRenderer = typeof SilentRenderer;
/** The default prefered renderer. */
type ListrPrimaryRendererValue = ListrDefaultRendererValue;
/** The default fallback renderer. */
type ListrSecondaryRendererValue = ListrSimpleRendererValue;
/**
 * Listr2 can process either the integrated renderers as string aliases,
 * or utilize a compatible style renderer that extends the ListrRenderer abstract class.
 */
type ListrRendererValue = ListrSilentRendererValue | ListrDefaultRendererValue | ListrSimpleRendererValue | ListrVerboseRendererValue | ListrTestRendererValue | ListrRendererFactory;
/**
 * Returns the class type from friendly names of the renderers.
 */
type ListrGetRendererClassFromValue<T extends ListrRendererValue> = T extends ListrDefaultRendererValue ? ListrDefaultRenderer : T extends ListrSimpleRendererValue ? ListrSimpleRenderer : T extends ListrVerboseRendererValue ? ListrVerboseRenderer : T extends ListrTestRendererValue ? ListrTestRenderer : T extends ListrSilentRenderer ? ListrSilentRenderer : T extends ListrRendererFactory ? T : never;
/**
 * Returns the friendly names from the type of renderer classes.
 */
type ListrGetRendererValueFromClass<T extends ListrRendererFactory> = T extends DefaultRenderer ? ListrDefaultRendererValue : T extends SimpleRenderer ? ListrSimpleRendererValue : T extends VerboseRenderer ? ListrVerboseRendererValue : T extends TestRenderer ? ListrTestRendererValue : T extends SilentRenderer ? ListrSilentRenderer : T extends ListrRendererFactory ? T : never;
/**
 * Returns renderer global options depending on the renderer type.
 */
type ListrGetRendererOptions<T extends ListrRendererValue> = T extends ListrRendererValue ? ListrGetRendererClassFromValue<T>['rendererOptions'] : never;
/**
 * Returns renderer per-task options depending on the renderer type.
 */
type ListrGetRendererTaskOptions<T extends ListrRendererValue> = T extends ListrRendererValue ? ListrGetRendererClassFromValue<T>['rendererTaskOptions'] : never;
/** Selection and options of the primary preferred renderer. */
interface ListrPrimaryRendererSelection<T extends ListrRendererValue> extends ListrPrimaryRendererOptions<T> {
    /** Default renderer preferred. */
    renderer?: T;
}
/** Options of the primary preferred renderer. */
interface ListrPrimaryRendererOptions<T extends ListrRendererValue> {
    /** Renderer options depending on the current renderer. */
    rendererOptions?: ListrGetRendererOptions<T>;
}
/** Task options of the primary preferred renderer. */
interface ListrPrimaryRendererTaskOptions<T extends ListrRendererValue> {
    /** Renderer options depending on the current renderer. */
    rendererOptions?: ListrGetRendererTaskOptions<T>;
}
/** Selection and options of the preferred fallback renderer. */
interface ListrSecondaryRendererSelection<T extends ListrRendererValue> extends ListrSecondaryRendererOptions<T> {
    /** Fallback renderer preferred. */
    fallbackRenderer?: T;
}
/** Options of the fallback renderer. */
interface ListrSecondaryRendererOptions<T extends ListrRendererValue> {
    /** Renderer options depending on the fallback renderer. */
    fallbackRendererOptions?: ListrGetRendererOptions<T>;
}
/** Task options of the fallback renderer. */
interface ListrSecondaryRendererTaskOptions<T extends ListrRendererValue> {
    /** Renderer options depending on the fallback renderer. */
    fallbackRendererOptions?: ListrGetRendererTaskOptions<T>;
}
/** Renderer options for the parent Listr class, including setup for selecting default and fallback renderers.  */
type ListrRendererOptions<Renderer extends ListrRendererValue, FallbackRenderer extends ListrRendererValue> = ListrPrimaryRendererSelection<Renderer> & ListrSecondaryRendererSelection<FallbackRenderer>;
/**
 * The definition of a ListrRenderer.
 *
 * @see {@link https://listr2.kilic.dev/renderer/renderer.html}
 */
declare class ListrRenderer {
    /** designate renderer global options that is specific to the current renderer */
    static rendererOptions: Record<PropertyKey, any>;
    /** designate renderer per task options that is specific to the current renderer  */
    static rendererTaskOptions: Record<PropertyKey, any>;
    /** designate whether this renderer can work in non-tty environments */
    static nonTTY: boolean;
    /** A function to what to do on render */
    render: () => void | Promise<void>;
    /** A function to what to do on end of the render */
    end: (err?: Error) => void;
    /** create a new renderer */
    constructor(tasks: Task<any, ListrRendererFactory, ListrRendererFactory>[], options: typeof ListrRenderer.rendererOptions, events?: ListrEventManager);
}
/** Factory of compatible Listr renderers. */
type ListrRendererFactory = typeof ListrRenderer;
/** Renderer selection for current Listr. */
interface SupportedRenderer<Renderer extends ListrRendererFactory> {
    renderer: Renderer;
    options?: ListrGetRendererOptions<Renderer>;
    selection: ListrRendererSelection;
}
type ListrRendererCacheMap<T> = Map<Task<any, any, any>['id'], T>;

/** Listr context. */
type ListrContext = any | undefined;
/**
 * Options to set the behavior of Listr.
 */
interface ListrOptions<Ctx = ListrContext> {
    /**
     * Inject a context through this options wrapper.
     *
     * @defaultValue `{}`
     * @see {@link https://listr2.kilic.dev/listr/context.html}
     */
    ctx?: Ctx;
    /**
     * Concurrency limits how many tasks will be running in parallel.
     *
     * - `false` will only run a single task at a time.
     * - `true` will set it to `Infinity` to run all the tasks in parallel.
     * - Given a `number` it will limit the concurrency to that number.
     *
     * @defaultValue `false`
     */
    concurrent?: boolean | number;
    /**
     * Determine the default behavior of exiting on errors.
     *
     * - `true` will exit the current Listr whenever it encounters an error.
     * - `false` will continue the execution of current Listr if it encounters an error.
     *
     * @defaultValue `true`
     */
    exitOnError?: boolean;
    /**
     * Determine the behavior of exiting after rollback actions.
     *
     * This is independent of `exitOnError`, since failure of a rollback can be a more critical operation comparing to
     * failing a single task.
     *
     * - `true` will stop the execution whenever a rollback happens.
     * - `false` will continue after successfully recovering from a rollback.
     *
     * @defaultValue `true`
     */
    exitAfterRollback?: boolean;
    /**
     * Collects errors inside the `Listr.errors`.
     *
     * - `false` will collect no errors.
     * - `minimal` will only collect the error message and the location.
     * - `full` will clone the current context and task in to the error instance.
     *
     * @defaultValue `false`
     * @see {@link https://listr2.kilic.dev/task/error-handling.html#collected-errors}
     */
    collectErrors?: false | 'minimal' | 'full';
    /**
     * Listr will track SIGINIT signal to update the renderer one last time before failing, therefore it needs to
     * register exit listeners.
     *
     * @defaultValue true
     */
    registerSignalListeners?: boolean;
    /**
     * Determine the certain condition required to use the fallback renderer.
     *
     * @defaultValue handled internally
     */
    fallbackRendererCondition?: boolean | (() => boolean);
    /**
     * Determine the certain condition required to use the silent renderer.
     *
     * @defaultValue handled internally
     */
    silentRendererCondition?: boolean | (() => boolean);
    /**
     * Forces TTY stdout even though your current output may not be compatible.
     *
     * @defaultValue `false`
     */
    forceTTY?: boolean;
    /**
     * Forces unicode icons even though your current output may not be compatible.
     *
     * @defaultValue `false`
     */
    forceUnicode?: boolean;
}
/**
 * Parent Listr has more options where you can also change global settings.
 *
 * Any subtasks will respect those options so they will be stripped of that properties.
 */
interface ListrBaseClassOptions<Ctx = ListrContext, Renderer extends ListrRendererValue = ListrPrimaryRendererValue, FallbackRenderer extends ListrRendererValue = ListrSecondaryRendererValue> extends ListrOptions<Ctx>, ListrPrimaryRendererSelection<Renderer>, ListrSecondaryRendererSelection<FallbackRenderer> {
}
/**
 * Subtasks has reduced set options where the missing ones are explicitly set by the base class.
 */
interface ListrSubClassOptions<Ctx = ListrContext, Renderer extends ListrRendererValue = ListrPrimaryRendererValue, FallbackRenderer extends ListrRendererValue = ListrSecondaryRendererValue> extends Omit<ListrOptions<Ctx>, 'registerSignalListeners' | 'fallbackRendererCondition' | 'silentRendererCondition' | 'forceTTY' | 'forceUnicode'>, ListrPrimaryRendererOptions<Renderer>, ListrSecondaryRendererOptions<FallbackRenderer> {
}

/**
 * Internal error handling mechanism for Listr collects the errors and details for a failed task.
 *
 * @see {@link https://listr2.kilic.dev/task/error-handling.html}
 */
declare class ListrError<Ctx extends ListrContext = ListrContext> extends Error {
    error: Error;
    type: ListrErrorTypes;
    task: Task<Ctx, ListrRendererFactory, ListrRendererFactory>;
    path: string[];
    ctx: Ctx;
    constructor(error: Error, type: ListrErrorTypes, task: Task<Ctx, ListrRendererFactory, ListrRendererFactory>);
}

/**
 * Event map for Listr.
 *
 * @see {@link https://listr2.kilic.dev/listr/events.html}
 * @see {@link module:listr2.ListrEventType}
 */
declare class ListrEventMap extends BaseEventMap implements EventMap<ListrEventType> {
    [ListrEventType.SHOULD_REFRESH_RENDER]: never;
}

/**
 * Internal error coming from renderer.
 */
declare class ListrRendererError extends Error {
}

/**
 * Defines the task, conditions and options to run a specific task in the Listr.
 * This defines the external API for the task where {@link TaskWrapper} is used internally.
 *
 * @see {@link https://listr2.kilic.dev/task/task.html}
 */
interface ListrTask<Ctx = ListrContext, Renderer extends ListrRendererFactory = any, FallbackRenderer extends ListrRendererFactory = any> extends ListrPrimaryRendererTaskOptions<Renderer>, ListrSecondaryRendererTaskOptions<FallbackRenderer> {
    /**
     * Title of the task.
     *
     * Give this task a title to enchance it on the preferred renderer.
     *
     * - Tasks without a title will be hidden from view in renderers and will act as a background task.
     *
     * @see {@link https://listr2.kilic.dev/task/title.html}
     */
    title?: string | any[];
    /**
     * The task itself in the form of a `Function`, `Promise`, `Listr`, `Observable` or `Stream`.
     *
     * - Task will be executed, whenever the provided criterion is met with the current state and whenever the time for that specific task has come.
     *
     * @see {@link https://listr2.kilic.dev/task/task.html}
     */
    task: ListrTaskFn<Ctx, Renderer, FallbackRenderer>;
    /**
     * Enable a task depending on the context.
     *
     * - The callback function will be evaluated before all the tasks start to check which tasks has been enabled.
     * - The callback function will be evaluated again before the task starts.
     *
     * @see {@link https://listr2.kilic.dev/task/enable.html}
     */
    enabled?: boolean | ((ctx: Ctx) => boolean | Promise<boolean>);
    /**
     * Skip this task depending on the context.
     *
     * - The callback function will be evaluated once before the task starts.
     *
     * @see {@link https://listr2.kilic.dev/task/skip.html}
     */
    skip?: boolean | string | ((ctx: Ctx) => boolean | string | Promise<boolean | string>);
    /**
     * Retries a task with the given amounts whenever a task fails.
     *
     * @see {@link https://listr2.kilic.dev/task/retry.html}
     */
    retry?: number | {
        tries: number;
        delay?: number;
    };
    /**
     * The callback function that you provide will run whenever the attached task fails and
     * give you the ability to revert your changes, before failing.
     *
     * @see {@link https://listr2.kilic.dev/task/rollback.html}
     */
    rollback?: ListrTaskFn<Ctx, Renderer, FallbackRenderer>;
    /**
     * Determine the default behavior of exiting on errors for this attached task.
     */
    exitOnError?: boolean | ((ctx: Ctx) => boolean | Promise<boolean>);
}
/**
 * Result of the processed task can be any of the supported types.
 */
type ListrTaskResult<Ctx> = string | Promise<any> | Listr<Ctx, ListrRendererValue, ListrRendererValue> | Readable | NodeJS.ReadableStream | Observable<any>;
/**
 * The callback function from the user that defines the task.
 */
type ListrTaskFn<Ctx, Renderer extends ListrRendererFactory, FallbackRenderer extends ListrRendererFactory> = (ctx: Ctx, task: TaskWrapper<Ctx, Renderer, FallbackRenderer>) => void | ListrTaskResult<Ctx>;
/**
 * Tasks can have attached prompts to them.
 */
type ListrTaskPrompt = ListrPromptAdapter;
/**
 * Tasks can retry themselves when defined.
 *
 * - This holds the value of the current error and the current retry attempt.
 */
interface ListrTaskRetry {
    count: number;
    error?: Error;
}
/**
 * Task can provide additional information depending on the current state of the Task.
 *
 * TaskMessage is used to propagate these messages to the renderers for displaying them to the end-user.
 */
interface ListrTaskMessage {
    /** Elapsed time of the current task, whenever the Task completes. */
    duration?: number;
    /** Error message from the current task, whenever the Task fails. */
    error?: string;
    /** Skip message from the current task, whenever the Task skips. */
    skip?: string;
    /** Rollback message from the current task, whenever the Task finishes rollback. */
    rollback?: string;
    /** Retry message from the current task, whenever the Task tries to retry. */
    retry?: ListrTaskRetry;
    /** Holds the time as epoch time of when will this task continue to execute. */
    paused?: number;
}
/**
 * Listr Task after the renderer has been selected and renderer related options removed.
 */
type ListrRendererTask<SelectedRenderer extends ListrRendererFactory> = Task<any, SelectedRenderer, SelectedRenderer>;

/**
 * Event map for Task.
 *
 * @see {@link https://listr2.kilic.dev/task/events.html}
 * @see {@link module:listr2.ListrTaskEventType}
 */
declare class ListrTaskEventMap extends BaseEventMap implements EventMap<ListrTaskEventType> {
    [ListrTaskEventType.STATE]: ListrTaskState;
    [ListrTaskEventType.ENABLED]: boolean;
    [ListrTaskEventType.SUBTASK]: Task<any, any, any>[];
    [ListrTaskEventType.TITLE]: string;
    [ListrTaskEventType.OUTPUT]: string;
    [ListrTaskEventType.MESSAGE]: ListrTaskMessage;
    [ListrTaskEventType.PROMPT]: string;
    [ListrTaskEventType.CLOSED]: never;
}

/**
 * Internal error handling mechanism for Listr prompts to identify the failing cause is coming from a prompt.
 *
 * @see {@link https://listr2.kilic.dev/task/prompts.html}
 */
declare class PromptError extends Error {
}

/**
 * Create a new task list with Listr.
 *
 * @see {@link https://listr2.kilic.dev/listr/listr.html}
 */
declare class Listr<Ctx = ListrContext, Renderer extends ListrRendererValue = ListrPrimaryRendererValue, FallbackRenderer extends ListrRendererValue = ListrSecondaryRendererValue> {
    task: ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<FallbackRenderer>> | ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<Renderer>>[];
    options?: ListrBaseClassOptions<Ctx, Renderer, FallbackRenderer>;
    parentTask?: Task<any, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<FallbackRenderer>>;
    tasks: Task<Ctx, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<FallbackRenderer>>[];
    errors: ListrError<Ctx>[];
    ctx: Ctx;
    events: ListrEventManager;
    path: string[];
    rendererClass: ListrRendererFactory;
    rendererClassOptions: ListrGetRendererOptions<ListrGetRendererClassFromValue<Renderer> | ListrGetRendererClassFromValue<FallbackRenderer>>;
    rendererSelection: ListrRendererSelection;
    private concurrency;
    private renderer;
    constructor(task: ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<FallbackRenderer>> | ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<Renderer>>[], options?: ListrBaseClassOptions<Ctx, Renderer, FallbackRenderer>, parentTask?: Task<any, ListrGetRendererClassFromValue<Renderer>, ListrGetRendererClassFromValue<FallbackRenderer>>);
    add(tasks: ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>> | ListrTask<Ctx, ListrGetRendererClassFromValue<Renderer>>[]): void;
    run(context?: Ctx): Promise<Ctx>;
    private generate;
    private runTask;
}

export { ANSI_ESCAPE, ANSI_ESCAPE_CODES, BaseEventMap, Concurrency, DefaultRenderer, type EventData, EventManager, type EventMap, type Figures, LISTR_DEFAULT_RENDERER_STYLE, LISTR_LOGGER_STDERR_LEVELS, LISTR_LOGGER_STYLE, Listr, type ListrBaseClassOptions, type ListrContext, type ListrDefaultRenderer, type ListrDefaultRendererCache, ListrDefaultRendererLogLevels, type ListrDefaultRendererOptions, type ListrDefaultRendererOptionsStyle, type ListrDefaultRendererOutputBuffer, type ListrDefaultRendererTask, type ListrDefaultRendererTaskOptions, type ListrDefaultRendererValue, ListrEnvironmentVariables, ListrError, ListrErrorTypes, ListrEventManager, ListrEventMap, ListrEventType, type ListrGetRendererClassFromValue, type ListrGetRendererOptions, type ListrGetRendererTaskOptions, type ListrGetRendererValueFromClass, ListrLogLevels, ListrLogger, type ListrLoggerOptions, type ListrLoggerStyleMap, type ListrOptions, type ListrPrimaryRendererOptions, type ListrPrimaryRendererSelection, type ListrPrimaryRendererTaskOptions, type ListrPrimaryRendererValue, ListrPromptAdapter, ListrRenderer, type ListrRendererCacheMap, ListrRendererError, type ListrRendererFactory, type ListrRendererOptions, ListrRendererSelection, type ListrRendererTask, type ListrRendererValue, type ListrSecondaryRendererOptions, type ListrSecondaryRendererSelection, type ListrSecondaryRendererTaskOptions, type ListrSecondaryRendererValue, type ListrSilentRenderer, type ListrSilentRendererOptions, type ListrSilentRendererTask, type ListrSilentRendererTaskOptions, type ListrSilentRendererValue, type ListrSimpleRenderer, type ListrSimpleRendererCache, type ListrSimpleRendererOptions, type ListrSimpleRendererTask, type ListrSimpleRendererTaskOptions, type ListrSimpleRendererValue, type ListrSubClassOptions, type ListrTask, ListrTaskEventManager, ListrTaskEventMap, ListrTaskEventType, type ListrTaskFn, type ListrTaskMessage, Task as ListrTaskObject, type ListrTaskPrompt, type ListrTaskResult, type ListrTaskRetry, ListrTaskState, TaskWrapper as ListrTaskWrapper, type ListrTestRenderer, type ListrTestRendererOptions, type ListrTestRendererTask, type ListrTestRendererTaskOptions, type ListrTestRendererValue, type ListrVerboseRenderer, type ListrVerboseRendererCache, type ListrVerboseRendererOptions, type ListrVerboseRendererTask, type ListrVerboseRendererTaskOptions, type ListrVerboseRendererValue, type LoggerField, type LoggerFieldFn, type LoggerFieldOptions, type LoggerFormat, type LoggerFormatOptions, PRESET_TIMER, PRESET_TIMESTAMP, type PresetTimer, type PresetTimestamp, ProcessOutput, ProcessOutputBuffer, type ProcessOutputBufferEntry, type ProcessOutputBufferOptions, type ProcessOutputOptions, type ProcessOutputRendererOptions, ProcessOutputStream, type ProcessOutputStreamMap, PromptError, type RendererLoggerOptions, type RendererPresetTimer, type RendererPresetTimestamp, SilentRenderer, SimpleRenderer, Spinner, type SupportedRenderer, TestRenderer, TestRendererSerializer, type TestRendererSerializerOutput, type TestRendererSerializerTaskKeys, VerboseRenderer, assertFunctionOrSelf, cleanseAnsi, cloneObject, color, createWritable, delay, figures, getRenderer, getRendererClass, indent, isObservable, isUnicodeSupported, parseTimer, parseTimestamp, splat };
