(self)
return bool(self.__flags & _symtable.USE)
Return *True* if the symbol is used in
        its block.
Return *True* if the symbol is used in
        its block.
Return * True * if the symbol is used in its block .
def is_referenced(self):
        """Return *True* if the symbol is used in
        its block.
        """
        return bool(self.__flags & _symtable.USE)
def is_referenced ( self ) : return bool ( self . __flags & _symtable . USE )