code: def mobileclient(username=None, device_id=None, *, token=None, locale='en_US'):
  	
  
  	return MobileClient(
  		username,
  		device_id,
  		token=token,
  		locale=locale
  	)
docs: Create and authenticate a Google Music mobile client.
  
  	>>> import google_music
  	>>> mc = google_music.mobileclient('username')
  
  	Parameters:
  		username (str, Optional): Your Google Music username.
  			This is used to store OAuth credentials for different accounts separately.
  		device_id (str, Optional): A mobile device ID. Default: MAC address is used.
  		token (dict, Optional): An OAuth token compatible with ``requests-oauthlib``.
  		locale (str, Optional): `ICU <http://www.localeplanet.com/icu/>`__ locale used to localize some
  			responses. This must be a locale supported by Android. Default: `'en_US'``.
  
  	Returns:
  		MobileClient: An authenticated :class:`~google_music.MobileClient` instance.