code: public Descriptor replaceAllCalls(PSequence<Call<?, ?>> calls) {
          return new Descriptor(name, calls, pathParamSerializers, messageSerializers, serializerFactory, exceptionSerializer, autoAcl, acls, headerFilter, locatableService, circuitBreaker, topicCalls);
      }
docs: Replace all the service calls provided by this descriptor with the the given service calls.
  
  @param calls The calls to replace the existing ones with.
  @return A copy of this descriptor with the new calls.