import { Buffer } from './Buffer';
export declare function atob(data: string): string;
export declare function btoa(data: string): string;
export declare function isAscii(input: Buffer | Uint8Array | ArrayBuffer): boolean;
export declare function isUtf8(input: Buffer | Uint8Array | ArrayBuffer): boolean;
export declare function transcode(source: Uint8Array, fromEnc: string, toEnc: string): Buffer;
export declare function resolveObjectURL(id: string): string | undefined;
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