export type RenderBarOptions = {
    i: number;
    label?: string;
    size?: number;
    width: number;
    elapsed: number;
    format?: (val: number) => string;
};
export type TqdmProgress = {
    i?: number;
    label?: string;
    size?: number;
    elapsed?: number;
};
export type TqdmOnProgress = (progress: TqdmProgress) => void;
export type TqdmOptions = {
    label?: string;
    size?: number;
    width?: number;
    onProgress?: TqdmOnProgress;
    format?: (val: number) => string;
};
export declare class Tqdm<T> implements IterableIterator<T> {
    private iter;
    private i;
    private start;
    private label;
    private size;
    private width;
    private format?;
    private onProgress?;
    constructor(iter: Array<T> | IterableIterator<T> | undefined | number, { label, size, width, onProgress, format }?: TqdmOptions);
    private print;
    set_description: (label: string) => string;
    render: (newI?: number) => void;
    next: () => IteratorResult<T>;
    [Symbol.iterator]: () => IterableIterator<T>;
}