code: def list_all(self):
          '''
          Return a list of the reactors
          '''
          if isinstance(self.minion.opts['reactor'], six.string_types):
              log.debug('Reading reactors from yaml %s', self.opts['reactor'])
              try:
                  with salt.utils.files.fopen(self.opts['reactor']) as fp_:
                      react_map = salt.utils.yaml.safe_load(fp_)
              except (OSError, IOError):
                  log.error('Failed to read reactor map: "%s"', self.opts['reactor'])
              except Exception:
                  log.error(
                      'Failed to parse YAML in reactor map: "%s"',
                      self.opts['reactor']
                  )
          else:
              log.debug('Not reading reactors from yaml')
              react_map = self.minion.opts['reactor']
          return react_maf list_all(self):
          '''
          Return a list of the reactors
          '''
          if isinstance(self.minion.opts['reactor'], six.string_types):
              log.debug('Reading reactors from yaml %s', self.opts['reactor'])
              try:
                  with salt.utils.files.fopen(self.opts['reactor']) as fp_:
                      react_map = salt.utils.yaml.safe_load(fp_)
              except (OSError, IOError):
                  log.error('Failed to read reactor map: "%s"', self.opts['reactor'])
              except Exception:
                  log.error(
                      'Failed to parse YAML in reactor map: "%s"',
                      self.opts['reactor']
                  )
          else:
              log.debug('Not reading reactors from yaml')
              react_map = self.minion.opts['reactor']
          return react_map
docs: Return a list of the reactors