Function libflac_sys::FLAC__metadata_object_vorbiscomment_insert_comment

pub unsafe extern "C" fn FLAC__metadata_object_vorbiscomment_insert_comment(
    object: *mut FLAC__StreamMetadata, 
    comment_num: u32, 
    entry: FLAC__StreamMetadata_VorbisComment_Entry, 
    copy: FLAC__bool
) -> FLAC__bool