public Builder mergeFrom(JOutPiqi.recipient other) {
        if (other == JOutPiqi.recipient.getDefaultInstance()) return this;
        if (other.hasAll()) {
          setAll(other.getAll());
        }
        if (other.hasUsers()) {
          mergeUsers(other.getUsers());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }