export interface ProgressTrackerInit {
    readonly total: number;
    readonly id: string;
}
export declare class ProgressTracker {
    private state;
    private readonly epoch;
    constructor(init: ProgressTrackerInit);
    abs(value: number): Progress;
    incr(value?: number): Progress;
    terminate(): Progress;
    peek(): Progress;
    private calculate;
    static createNonce(): number;
}
export declare class ProgressTrackers {
    static singleTaskTerminated(id: string): Progress;
}
export declare type ProgressListener = (progress: Progress) => void;
export declare type UnixTimeMS = number;
export interface MutableProgress {
    task: TaskID;
    completed: number;
    total: number;
    duration: number;
    progress: Percentage;
    id: string;
    timestamp: UnixTimeMS;
    name?: string;
}
export interface Progress extends Readonly<MutableProgress> {
}
export interface BaseProgress<T, V> {
    readonly type: T;
    readonly task: TaskID;
    readonly completed: number;
    readonly total: number;
    readonly duration: number;
    readonly value: Percentage;
    readonly id: string;
    readonly timestamp: UnixTimeMS;
    readonly name?: string;
}
export interface DeterminateProgress extends BaseProgress<'determinate', Percentage> {
}
export interface IndeterminateProgress extends BaseProgress<'indeterminate', undefined> {
}
export declare class ProgressStates {
}
export declare type ProgressCallback = (progress: Progress) => void;
export declare type TaskID = number;
export declare type Percentage = 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100;