input: from typing import List
  
  def generate_Python_script():
      """Generate a Python script that contains a function with two parameters and
      returns the sum of the two parameters.
      Example:
      for generate_Python_script.__doc__ == '''def add(x, y): 
      """Returns the sum of x and y"""
      return x + y'''
      """
output:     script = '''def add(x, y): 
      """Returns the sum of x and y"""
      return x + y'''
      return script