cypy/data.py
def keys(self):
        """ Return the keys of the record.

        :return: tuple of key names
        """
        return self.__keys
 Return the keys of the record.

        :return: tuple of key names
        
Return the keys of the record.
Return the keys of the record .
def keys(self):
        return self.__keys
def keys ( self ) : return self . __keys
Return the keys of the record.
Return the keys of the record .
""" Return the keys of the record.

        :return: tuple of key names
        """
tuple of key names
tuple of key names
self