public Builder setCommand(
        int index, java.lang.String value) {
      if (value == null) { throw new NullPointerException(); }
      ensureCommandIsMutable();
      command_.set(index, value);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
public Builder setCommand(
        int index, java.lang.String value)