/**
 * Encodes signed integer `x` into LEB128 varint format and returns encoded
 * bytes. Values will be coerced to i64 range prior to encoding.
 *
 * @param x -
 */
export declare const encodeSLEB128: (x: bigint | number) => Uint8Array<ArrayBuffer>;
/**
 * Takes an `Uint8Array` with LEB128 encoded signed varint and an optional start
 * index to decode from. Returns 2-tuple of decoded value and number of bytes
 * consumed. Consumes up to 10 bytes from `src`.
 *
 * @param src -
 * @param idx -
 */
export declare const decodeSLEB128: (src: Uint8Array, idx?: number) => [bigint, number];
/**
 * Takes a destination `Uint8Array`, a signed integer `x`, and an optional
 * index/position to encode an LEB128 formatted byte sequence into the
 * destination. Returns the number of bytes written.
 *
 * @remarks
 * Also see {@link encodeSLEB128}.
 *
 * @param dst -
 * @param x -
 * @param pos -
 */
export declare const encodeSLEB128Into: (dst: Uint8Array, x: bigint | number, pos?: number) => number;
/**
 * Encodes unsigned integer `x` into LEB128 varint format and returns encoded
 * bytes. Values will be coerced to u64 range prior to encoding.
 *
 * @param x -
 */
export declare const encodeULEB128: (x: bigint | number) => Uint8Array<ArrayBuffer>;
/**
 * Takes an `Uint8Array` with LEB128 encoded unsigned varint and an optional
 * start index to decode from. Returns 2-tuple of decoded value and number of
 * bytes consumed. Consumes up to 10 bytes from `src`.
 *
 * @param src -
 * @param idx -
 */
export declare const decodeULEB128: (src: Uint8Array, idx?: number) => [bigint, number];
/**
 * Takes a destination Uint8Array, an unsigned integer `x`, and an optional
 * position to encode an LEB128 formatted byte sequence into the destination.
 * Returns the number of bytes written.
 *
 * @remarks
 * Also see {@link encodeULEB128}.
 *
 * @param dst -
 * @param x -
 * @param pos -
 */
export declare const encodeULEB128Into: (dst: Uint8Array, x: bigint | number, pos?: number) => number;
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