(self)
return self._all.names
for coverage:
        >>> SelectableGroups().names
        set()
for coverage:
        >>> SelectableGroups().names
        set()
for coverage : >>> SelectableGroups () . names set ()
def names(self):
        """
        for coverage:
        >>> SelectableGroups().names
        set()
        """
        return self._all.names
def names ( self ) : return self . _all . names