public Builder setProject(String project) {
      this.project = project;
      return this;
    }
Builder for
projects/{project}/locations/{location}/privateClouds/{private_cloud}/hcxActivationKeys/{hcx_activation_key}.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/HcxActivationKeyName.java