(self, x)
Returns argument at given index, else none.
Returns argument at given index, else none.
Returns argument at given index else none .
def get(self, x):
        """Returns argument at given index, else none."""
        try:
            return self.all[x]
        except IndexError:
            return None
def get ( self , x ) : try : return self . all [ x ] except IndexError : return None