export declare function nthIndexOf(input: string, matcher: string, n: number): number;
export declare function byteLength(input: string | Uint8Array | Buffer): number;
export declare function delay(t: number): Promise<void>;
export declare const isWorker: boolean;
export declare const isWeb: boolean;
export declare const isNode: string | false;
export declare const makePropertyWritable: <T>(obj: T, property: keyof T) => T;
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