'Copy func parameter names to obj attributes.'

def _setargs(self):

    try:
        for arg in _getargs(self.callable):
            setattr(self, arg, None)
    except (TypeError, AttributeError):
        if hasattr(self.callable, '__call__'):
            for arg in _getargs(self.callable.__call__):
                setattr(self, arg, None)
    except NotImplementedError:
        pass
    except IndexError:
        pass
