code: def get_evpn_table(self):
          
          evpn_table = self._global_tables.get(RF_L2_EVPN)
          # Lazy initialization of the table.
          if not evpn_table:
              evpn_table = EvpnTable(self._core_service, self._signal_bus)
              self._global_tables[RF_L2_EVPN] = evpn_table
              self._tables[(None, RF_L2_EVPN)] = evpn_table
  
          return evpn_table
docs: Returns global EVPN table.
  
          Creates the table if it does not exist.