code: def check(self, obj, prefix=None):
          
          self._populate_registry(obj, prefix)
          settings_to_write, missing = self._check(obj, prefix, {}, {})
          if settings_to_write:
              self.strategy.write_settings(settings_to_write, self.file_name, self.section)
          if missing:
              for name, local_setting in missing.items():
                  printer.print_error('Local setting `{name}` must be set'.format(name=name))
              return False
          return True
docs: Recursively look for :class:`.LocalSetting`s in ``obj``.
  
          ``obj`` can be a dict, tuple, or list. Other types are skipped.
  
          This will prompt to get the value of local settings (excluding
          those that have had prompting disabled) that haven't already
          been set locally.
  
          Returns ``True`` or ``False`` to indicate whether settings were
          successfully checked.