/**
 * Converts a 16-byte key ID from little-endian to big-endian format.
 *
 * @param keyId - The little-endian key ID to convert.
 * @returns The big-endian representation of the key ID.
 *
 * @group DRM
 * @beta
 *
 * @example
 * {@includeCode ../../../test/drm/playready/toBigEndianKeyId.test.ts#example}
 */
export declare function toBigEndianKeyId(keyId: ArrayBuffer): ArrayBuffer;
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