private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmwareengine.v1.NetworkPeering,
            com.google.cloud.vmwareengine.v1.NetworkPeering.Builder,
            com.google.cloud.vmwareengine.v1.NetworkPeeringOrBuilder>
        getNetworkPeeringFieldBuilder() {
      if (networkPeeringBuilder_ == null) {
        networkPeeringBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmwareengine.v1.NetworkPeering,
                com.google.cloud.vmwareengine.v1.NetworkPeering.Builder,
                com.google.cloud.vmwareengine.v1.NetworkPeeringOrBuilder>(
                getNetworkPeering(), getParentForChildren(), isClean());
        networkPeering_ = null;
      }
      return networkPeeringBuilder_;
    }
<pre>
Required. The initial description of the new network peering.
</pre>

<code>
.google.cloud.vmwareengine.v1.NetworkPeering network_peering = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/CreateNetworkPeeringRequest.java