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function normalizeRangeArguments(start = 0, end?: number, step?: number) {    if (end == null) {        [start, end] = [0, start];    }
    if (step == null) {        step = end < start ? -1 : 1;    }
    return [start, end, step];}
class Range {    private start: number;    private end: number;    private step: number;    private isReversed: boolean;
    constructor(...args: Parameters<typeof normalizeRangeArguments>) {        [this.start, this.end, this.step] = normalizeRangeArguments(...args);        this.isReversed = this.end < this.start;    }
    *[Symbol.iterator] () {        for (            let current = this.start;            this.isReversed ? current > this.end : current < this.end;            current += this.step        ) {            yield current;        }    };}
export function range(...args: Parameters<typeof normalizeRangeArguments>) {    return new Range(...args);}
export default range;