/// <reference types="node" />
/** Performs a bitwise OR operation on each byte of the given data using the given key(s). */
declare function or(data: string | ArrayBuffer | NodeJS.ArrayBufferView, key: number | number[], encoding: string): string;
declare function or(data: string | ArrayBuffer | NodeJS.ArrayBufferView, key: number | number[]): Uint8Array;
export = or;
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