input: 
  def create_rectangle_class(length: float, width: float) -> object:
      """Create a Python class called Rectangle to represent a two-dimensional rectangle with a length and width.
      The class should have a method to calculate the area of the rectangle.
      >>> rect = create_rectangle_class(3.0, 4.0)
      >>> rect.area()
      12.0
      >>> rect = create_rectangle_class(5.0, 10.0)
      >>> rect.area()
      50.0
      """
      class Rectangle:
          def __init__(self, length, width):
              self.length = length
              self.width = width
          
          def area(self):
              return self.length * self.width
      
      return Rectangle(length, width)
  
output:     
      class Rectangle:
          def __init__(self, length, width):
              self.length = length
              self.width = width
          
          def area(self):
              return self.length * self.width
      
      return Rectangle(length, width)
  