public Builder putCardsmap(
          String key,
          DriverCard value) {
        if (key == null) { throw new NullPointerException("map key"); }
        if (value == null) {
  throw new NullPointerException("map value");
}

        internalGetMutableCardsmap().getMutableMap()
            .put(key, value);
        return this;
      }
<code>map&lt;string, .com.alibaba.fastjson2.dubbo.DriverCard&gt; cardsmap = 18;</code>
core/src/test/java/com/alibaba/fastjson2/dubbo/GoogleProtobufBasic.java