public Builder mergeExternalIp(
        com.google.cloud.vmwareengine.v1.NetworkPolicy.NetworkService value) {
      if (externalIpBuilder_ == null) {
        if (((bitField0_ & 0x00000010) != 0)
            && externalIp_ != null
            && externalIp_
                != com.google.cloud.vmwareengine.v1.NetworkPolicy.NetworkService
                    .getDefaultInstance()) {
          getExternalIpBuilder().mergeFrom(value);
        } else {
          externalIp_ = value;
        }
      } else {
        externalIpBuilder_.mergeFrom(value);
      }
      if (externalIp_ != null) {
        bitField0_ |= 0x00000010;
        onChanged();
      }
      return this;
    }
<pre>
Network service that allows External IP addresses to be assigned to VMware
workloads. This service can only be enabled when `internet_access` is also
enabled.
</pre>

<code>.google.cloud.vmwareengine.v1.NetworkPolicy.NetworkService external_ip = 7;</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/NetworkPolicy.java