docs: def is_on_curve(self, point):
          """
          Checks whether a point is on the curve.
  
          Args:
              point (AffinePoint): Point to be checked.
  
          Returns:
              bool: True if point is on the curve, False otherwise.
          """
          X, Y = point.X, point.Y
          return (
                  pow(Y, 2, self.P) - pow(X, 3, self.P) - self.a * X - self.b
              ) % self.P == 0