docs: def get_index_translog_disable_flush(self):
          """Return a dictionary showing the position of the 
          'translog.disable_flush' knob for each index in the cluster.
  
          The dictionary will look like this:
  
              {
                  "index1": True,      # Autoflushing DISABLED
                  "index2": False,     # Autoflushing ENABLED
                  "index3": "unknown", # Using default setting (probably enabled)
                  ...
              }
  
          """
          disabled = {}
          settings = self.get('/_settings')
          setting_getters = [
              lambda s: s['index.translog.disable_flush'],
              lambda s: s['index']['translog']['disable_flush']]
          for idx in settings:
              idx_settings = settings[idx]['settings']
              for getter in setting_getters:
                  try:
                      disabled[idx] = booleanise(getter(idx_settings))
                  except KeyError as e:
                      pass
              if not idx in disabled:
                  disabled[idx] = 'unknown'
          return disabled