input: Write a python function to create an HTML input page that accepts user input through a form and sends it to a specified script.
  assert create_input_page("script.py", "user_input") == '<!DOCTYPE html>\n<html>\n<head>\n    <title>Input Page</title>\n</head>\n<body>\n    <h1>Input Page</h1>\n    <form action="script.py" method="POST">\n      <label>Enter your input: <input type="text" name="user_input" size="50"></label>\n      <input type="submit" text="Submit">\n    </form>\n</body>\n</html>'
  assert create_input_page("process_data.py", "data") == '<!DOCTYPE html>\n<html>\n<head>\n    <title>Input Page</title>\n</head>\n<body>\n    <h1>Input Page</h1>\n    <form action="process_data.py" method="POST">\n      <label>Enter your input: <input type="text" name="data" size="50"></label>\n      <input type="submit" text="Submit">\n    </form>\n</body>\n</html>'
output: def create_input_page(script_name, input_name):
      return f'''<!DOCTYPE html>
  <html>
  <head>
      <title>Input Page</title>
  </head>
  <body>
      <h1>Input Page</h1>
      <form action="{script_name}" method="POST">
        <label>Enter your input: <input type="text" name="{input_name}" size="50"></label>
        <input type="submit" text="Submit">
      </form>
  </body>
  </html>'''