public Builder mergeClientEvent(com.google.cloud.talent.v4.ClientEvent value) {
      if (clientEventBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && clientEvent_ != null
            && clientEvent_ != com.google.cloud.talent.v4.ClientEvent.getDefaultInstance()) {
          getClientEventBuilder().mergeFrom(value);
        } else {
          clientEvent_ = value;
        }
      } else {
        clientEventBuilder_.mergeFrom(value);
      }
      if (clientEvent_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Required. Events issued when end user interacts with customer's application
that uses Cloud Talent Solution.
</pre>

<code>
.google.cloud.talent.v4.ClientEvent client_event = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/CreateClientEventRequest.java