export type TaskStatus = "PENDING" | "SKIPPED" | "IN_PROGRESS" | "SUCCEEDED" | "FAILED";
export type TaskInputHandler<Input> = () => Input;
export type TaskEvents<Input, Output> = {
    skipped: [];
    started: [Input];
    succeeded: [Input, Output];
    failed: [Error];
};
export type ITask = {
    id: string;
    status: TaskStatus;
    needs: Array<ITask>;
    if: (() => boolean) | undefined;
    areNeedsTerminated: () => boolean;
    shouldSkip: () => boolean;
    skip: () => void;
    isPending(): boolean;
    isInProgress(): boolean;
    isSuccess(): boolean;
    isSkipped(): boolean;
    isFailure(): boolean;
    isTerminated(): boolean;
    execute: () => Promise<void>;
};
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