/** @packageDocumentation ID3v2 unique file identifier frame (UFID). Stores an owner-identified binary identifier for the file. */
import { ByteVector } from "../../../byteVector.js";
import { Id3v2Frame, Id3v2FrameHeader } from "../id3v2Frame.js";
/**
 * Unique file identifier frame (UFID).
 *
 * Structure: owner(null-terminated Latin1) + identifier(bytes).
 */
export declare class UniqueFileIdentifierFrame extends Id3v2Frame {
    /** The owner URL or identifier string that names the identification scheme. */
    private _owner;
    /** The binary identifier data for this file under the owner's scheme. */
    private _identifier;
    /**
     * Creates a new UFID frame with an optional owner and identifier.
     * @param owner - The owner URL or scheme identifier string.
     * @param identifier - The binary file identifier data.
     */
    constructor(owner?: string, identifier?: ByteVector);
    /**
     * Gets the owner URL or scheme identifier string.
     * @returns The owner string.
     */
    get owner(): string;
    /**
     * Sets the owner URL or scheme identifier string.
     * @param value - The new owner string.
     */
    set owner(value: string);
    /**
     * Gets the binary file identifier data.
     * @returns A {@link ByteVector} containing the identifier bytes.
     */
    get identifier(): ByteVector;
    /**
     * Sets the binary file identifier data.
     * @param data - The new identifier bytes.
     */
    set identifier(data: ByteVector);
    /**
     * Returns the owner identifier string.
     * @returns The owner string of this frame.
     */
    toString(): string;
    /** @internal Create from raw frame data. */
    static fromData(data: ByteVector, header: Id3v2FrameHeader, version: number): UniqueFileIdentifierFrame;
    /**
     * Parses the raw frame fields into owner and identifier data.
     * @param data - The raw field bytes of the frame.
     * @param _version - The ID3v2 version (unused).
     */
    protected parseFields(data: ByteVector, _version: number): void;
    /**
     * Serializes the UFID frame fields into bytes.
     * @param _version - The ID3v2 version (unused).
     * @returns A {@link ByteVector} containing the encoded frame fields.
     */
    protected renderFields(_version: number): ByteVector;
}
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