parameters: (class_)
return_statement: return class_._tzutc
docstring: Returns a time-zone representing UTC.
  
  		Same as TimeZoneInfo('GMT Standard Time', True) but caches the result
  		for performance.
  
  		>>> isinstance(TimeZoneInfo.utc(), TimeZoneInfo)
  		True
docstring_summary: Returns a time-zone representing UTC.
docstring_tokens: Returns a time - zone representing UTC .
function: def utc(class_):
  		"""Returns a time-zone representing UTC.
  
  		Same as TimeZoneInfo('GMT Standard Time', True) but caches the result
  		for performance.
  
  		>>> isinstance(TimeZoneInfo.utc(), TimeZoneInfo)
  		True
  		"""
  		if not '_tzutc' in class_.__dict__:
  			setattr(class_, '_tzutc', class_('GMT Standard Time', True))
  		return class_._tzutc
function_tokens: def utc ( class_ ) : if not '_tzutc' in class_ . __dict__ : setattr ( class_ , '_tzutc' , class_ ( 'GMT Standard Time' , True ) ) return class_ . _tzutc