public com.google.protobuf.ByteString getServiceNetworkBytes() {
      java.lang.Object ref = serviceNetwork_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        serviceNetwork_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Required. Service network to create private connection.
Specify the name in the following form:
`projects/{project}/global/networks/{network_id}`
For type = PRIVATE_SERVICE_ACCESS, this field represents servicenetworking
VPC, e.g. projects/project-tp/global/networks/servicenetworking.
For type = NETAPP_CLOUD_VOLUME, this field represents NetApp service VPC,
e.g. projects/project-tp/global/networks/netapp-tenant-vpc.
For type = DELL_POWERSCALE, this field represent Dell service VPC, e.g.
projects/project-tp/global/networks/dell-tenant-vpc.
For type= THIRD_PARTY_SERVICE, this field could represent a consumer VPC or
any other producer VPC to which the VMware Engine Network needs to be
connected, e.g. projects/project/global/networks/vpc.
</pre>

<code>
string service_network = 16 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
</code>

@return The bytes for serviceNetwork.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/PrivateConnection.java