(self, x)
return self.__contains__(x)
Tests if given object is in arguments list.
           Accepts strings and lists of strings.
Tests if given object is in arguments list.
           Accepts strings and lists of strings.
Tests if given object is in arguments list . Accepts strings and lists of strings .
def contains(self, x):
        """Tests if given object is in arguments list.
           Accepts strings and lists of strings."""

        return self.__contains__(x)
def contains ( self , x ) : return self . __contains__ ( x )