code: def get(self, res, pk):
          "Get a resource instance by primary key (id)"
          B = get_backend()
          return B.get_object(B.get_concrete(res), pkf get(self, res, pk):
          "Get a resource instance by primary key (id)"
          B = get_backend()
          return B.get_object(B.get_concrete(res), pk)
docs: Get a resource instance by primary key (id)