export declare const NUMBERS = "0123456789";
export declare const CHARS_LOWER = "abcdefghijklmnopqrstuvwxyz";
export declare const CHARS_UPPER: string;
export declare const HEX_POOL = "0123456789abcdef";
/**
 * @returns Slug from the input.
 */
export declare function slug(input?: string): string;
/**
 * Transforms ASCII string to buffer.
 */
export declare function strToBuffer(asciiString: string): Uint8Array;
/**
 * Converts incoming data to base64 string.
 * @returns Safe to store string.
 */
export declare function bufferToBase64(buffer: ArrayBufferLike): string;
/**
 * Converts base64 string to Uint8Array.
 * @returns Restored array view.
 */
export declare function base64ToBuffer(str: string): Uint8Array;
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