code: def create_point(self, x, y):
          
          if (not isinstance(x, six.integer_types) or
                  not isinstance(y, six.integer_types)):
              raise ValueError("The coordinates must be longs.")
          return _ECDSA_Point(SECP256k1.curve, x, y)
docs: Create an ECDSA point on the SECP256k1 curve with the given coords.
  
          :param x: The x coordinate on the curve
          :type x: long
          :param y: The y coodinate on the curve
          :type y: long