def add_tags(self):
        """Add a Vorbis comment block to the file."""
        if self.tags is None:
            self.tags = VCFLACDict()
            self.metadata_blocks.append(self.tags)
        else:
            raise FLACVorbisError("a Vorbis comment already exists")
def add_tags ( self ) : if self . tags is None : self . tags = VCFLACDict ( ) self . metadata_blocks . append ( self . tags ) else : raise FLACVorbisError ( "a Vorbis comment already exists" )
Add a Vorbis comment block to the file.