code: def del_flowspec_local(flowspec_family, route_dist, rules):
      
      try:
          tm = CORE_MANAGER.get_core_service().table_manager
          tm.update_flowspec_vrf_table(
              flowspec_family=flowspec_family, route_dist=route_dist,
              rules=rules, is_withdraw=True)
  
          # Send success response.
          return [{FLOWSPEC_FAMILY: flowspec_family,
                   ROUTE_DISTINGUISHER: route_dist,
                   FLOWSPEC_RULES: rules}]
  
      except BgpCoreError as e:
          raise PrefixError(desc=e)
docs: Deletes/withdraws Flow Specification route from VRF identified
      by *route_dist*.