/**
 * Compares two byte arrays and returns the count of consecutively matching items from the start.
 *
 * @function
 * @param {Uint8Array} bytes1 - The first Uint8Array to compare.
 * @param {Uint8Array} bytes2 - The second Uint8Array to compare.
 * @returns {number} The count of consecutively matching items from the start.
 */
export declare function matchingBytesLength(bytes1: Uint8Array, bytes2: Uint8Array): number;
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