code: def dict_to_note(dict):
      '''
      Transform a dict with keys `note`, `type` and `language` into a
      :class:`Note`.
  
      Only the `note` key is mandatory. If `type` is not present, it will
      default to `note`. If `language` is not present, it will default to `und`.
      If `markup` is not present it will default to `None`.
  
      If the argument passed is already a :class:`Note`, this method just returns
      the argument.
      '''
      if isinstance(dict, Note):
          return dict
      return Note(
          dict['note'],
          dict.get('type', 'note'),
          dict.get('language', 'und'),
          dict.get('markup')
      f dict_to_note(dict):
      '''
      Transform a dict with keys `note`, `type` and `language` into a
      :class:`Note`.
  
      Only the `note` key is mandatory. If `type` is not present, it will
      default to `note`. If `language` is not present, it will default to `und`.
      If `markup` is not present it will default to `None`.
  
      If the argument passed is already a :class:`Note`, this method just returns
      the argument.
      '''
      if isinstance(dict, Note):
          return dict
      return Note(
          dict['note'],
          dict.get('type', 'note'),
          dict.get('language', 'und'),
          dict.get('markup')
      )
docs: Transform a dict with keys `note`, `type` and `language` into a
      :class:`Note`.
  
      Only the `note` key is mandatory. If `type` is not present, it will
      default to `note`. If `language` is not present, it will default to `und`.
      If `markup` is not present it will default to `None`.
  
      If the argument passed is already a :class:`Note`, this method just returns
      the argument.