How to use the spotdl.metadata.embed function in spotdl

def test_embed_in_m4a(self):
        expect_embed = True
        embed = metadata.embed(track_path + ".m4a", meta_tags)
        os.remove(track_path + ".m4a")
        assert embed == expect_embed

def test_embed_in_flac(self):
        expect_embed = True
        embed = metadata.embed(track_path + ".flac", meta_tags)
        os.remove(track_path + ".flac")
        assert embed == expect_embed

def test_embed_in_webm(self):
        expect_embed = False
        embed = metadata.embed(track_path + ".webm", meta_tags)
        os.remove(track_path + ".webm")
        assert embed == expect_embed

def test_embed_in_webm(self, metadata_fixture, trackpath_fixture):
        expect_embed = False
        embed = metadata.embed(trackpath_fixture + ".webm", metadata_fixture)
        os.remove(trackpath_fixture + ".webm")
        assert embed == expect_embed

def test_embed_in_mp3(self, metadata_fixture, trackpath_fixture):
        expect_embed = True
        embed = metadata.embed(trackpath_fixture + ".mp3", metadata_fixture)
        assert embed == expect_embed

def test_embed_in_flac(self, metadata_fixture, trackpath_fixture):
        expect_embed = True
        embed = metadata.embed(trackpath_fixture + ".flac", metadata_fixture)
        os.remove(trackpath_fixture + ".flac")
        assert embed == expect_embed

try:
                convert.song(
                    input_song,
                    output_song,
                    const.args.folder,
                    avconv=const.args.avconv,
                    trim_silence=const.args.trim_silence,
                    delete_original=not const.args.no_remove_original,
                )
            except FileNotFoundError:
                encoder = "avconv" if const.args.avconv else "ffmpeg"
                log.warning("Could not find {0}, skip encoding".format(encoder))
                output_song = self.unconverted_filename(songname)

            if not const.args.no_metadata and self.meta_tags is not None:
                metadata.embed(
                    os.path.join(const.args.folder, output_song), self.meta_tags
                )
            return True