code: def write_file(filename, content):
      
      with open_file(filename, 'w') as f:
          f.write(content)
  
      file_prepender(filename)
docs: Writes a file with the given filename and content and returns None.
  
      :param filename: A string containing the target filename.
      :param content: A string containing the data to be written.
      :return: None