code: def neighbor_state_get(self, address=None, format='json'):
          
          show = {
              'params': ['neighbor', 'summary'],
              'format': format,
          }
          if address:
              show['params'].append(address)
  
          return call('operator.show', **show)
docs: This method returns the state of peer(s) in a json
          format.
  
          ``address`` specifies the address of a peer. If not given, the
          state of all the peers return.
  
          ``format`` specifies the format of the response.
          This parameter must be one of the following.
  
          - 'json' (default)
          - 'cli'