/**
 * Mutable tag interface for the Full API's direct C++ binding.
 *
 * Returns single strings from TagLib's C++ Tag accessors. This is the interface
 * returned by `AudioFile.tag()` in the Full API. Setters are chainable.
 *
 * The Simple API's `Tag` type is different: it wraps values in `string[]` arrays
 * for multi-value support (e.g. multiple artists). Use `readTags()` from
 * `taglib-wasm/simple` for the array-based interface.
 *
 * @example
 * ```typescript
 * const file = await taglib.open("song.mp3");
 * const tag = file.tag();
 *
 * // Read metadata (single strings)
 * console.log(tag.title); // "My Song"
 *
 * // Write metadata (chainable)
 * tag.setTitle("New Title").setArtist("New Artist");
 * file.save();
 * ```
 */
export interface MutableTag {
    /** Track title */
    readonly title?: string;
    /** Artist name */
    readonly artist?: string;
    /** Album name */
    readonly album?: string;
    /** Comment */
    readonly comment?: string;
    /** Genre */
    readonly genre?: string;
    /** Year */
    readonly year?: number;
    /** Track number */
    readonly track?: number;
    /** Set the track title */
    setTitle(value: string): MutableTag;
    /** Set the artist name */
    setArtist(value: string): MutableTag;
    /** Set the album name */
    setAlbum(value: string): MutableTag;
    /** Set the comment */
    setComment(value: string): MutableTag;
    /** Set the genre */
    setGenre(value: string): MutableTag;
    /** Set the release year */
    setYear(value: number): MutableTag;
    /** Set the track number */
    setTrack(value: number): MutableTag;
}
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