public Builder addMethod(
          int index, com.google.protobuf.DescriptorProtos.MethodDescriptorProto.Builder builderForValue) {
        if (methodBuilder_ == null) {
          ensureMethodIsMutable();
          method_.add(index, builderForValue.build());
          onChanged();
        } else {
          methodBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }