public java.lang.String getRequestId() {
      java.lang.Object ref = requestId_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        requestId_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
<pre>
Strongly recommended for the best service experience.

A unique ID generated in the API responses. It can be found in
[ResponseMetadata.request_id][google.cloud.talent.v4.ResponseMetadata.request_id].
</pre>

<code>string request_id = 1;</code>

@return The requestId.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/ClientEvent.java