input: 
  def create_rectangle_class():
      """
      Create a Python class called Rectangle to represent a two-dimensional
      rectangle with a length and width. The class should have an __init__ method to
      initialize the length and width, and an area method to calculate the area of the
      rectangle.
      
      Example:
      >>> rect = Rectangle(5, 7)
      >>> rect.area()
      35
      """
  
output:     class Rectangle:
          def __init__(self, length, width):
              self.length = length
              self.width = width
          
          def area(self):
              return self.length * self.width