declare module 'browser-id3-writer' {
  export default class ID3Writer {
    constructor(buffer: Buffer | ArrayBuffer);

    setFrame(name: string, value: string | object | string[]);

    addTag(): Uint8Array;
  }
}

declare module 'metaflac-js' {
  export default class Metaflac {
    constructor(buffer: Buffer);

    setTag(field: string);

    removeTag(name: string);

    importPictureFromBuffer(picture: Buffer);

    save(): Buffer;
  }
}