code: def example_add_line_to_file():
      
      my_file = FileAsObj('/tmp/example_file.txt')
      my_file.add('foo')
      my_file.append('bar')
      # Add a new line to my_file that contains the word 'lol' and print True|False if my_file was changed.
      print(my_file + 'lol')
      # Add line even if it already exists in the file.
      my_file.unique = False
      my_file.add('foo')
docs: Different methods to append a given line to the file, all work the same.