public Builder setRequestIdBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      requestId_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<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>

@param value The bytes for requestId to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/ClientEvent.java