/// <summary>
 /// Closes the <paramref name="sndfile"/> audio file.
 /// </summary>
 /// <param name="sndfile">Audio file we want to close.</param>
 /// <returns><see cref="LibsndfileError"/> error code.</returns>
 public LibsndfileError Close(IntPtr sndfile)
 {
     return(LibsndfileApiNative.sf_close(sndfile));
 }