public Builder mergeHost(com.google.cloud.workstations.v1.WorkstationConfig.Host value) {
      if (hostBuilder_ == null) {
        if (((bitField0_ & 0x00001000) != 0)
            && host_ != null
            && host_
                != com.google.cloud.workstations.v1.WorkstationConfig.Host.getDefaultInstance()) {
          getHostBuilder().mergeFrom(value);
        } else {
          host_ = value;
        }
      } else {
        hostBuilder_.mergeFrom(value);
      }
      if (host_ != null) {
        bitField0_ |= 0x00001000;
        onChanged();
      }
      return this;
    }
<pre>
Optional. Runtime host for the workstation.
</pre>

<code>
.google.cloud.workstations.v1.WorkstationConfig.Host host = 12 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/WorkstationConfig.java