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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def playlist_song_delete(self, playlist_song):
 		"""Delete song from playlist. 		Parameters: 			playlist_song (str):
 A playlist song dict. 		Returns: 			dict: Playlist dict including songs. 		"""


		self.playlist_songs_delete([playlist_song])

		return self.playlist(playlist_song['playlistId'], include_songs=True)