def all(self, axis=None, *args, **kwargs):
nv.validate_all(args, kwargs)<EOL>values = self.sp_values<EOL>if len(values) != len(self) and not np.all(self.fill_value):<EOL><INDENT>return False<EOL><DEDENT>return values.all()<EOL>
Tests whether all elements evaluate True

Returns
-------
all : bool

See Also
--------
numpy.all