public Builder mergeManagementDnsZoneBinding(
        com.google.cloud.vmwareengine.v1.ManagementDnsZoneBinding value) {
      if (managementDnsZoneBindingBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && managementDnsZoneBinding_ != null
            && managementDnsZoneBinding_
                != com.google.cloud.vmwareengine.v1.ManagementDnsZoneBinding.getDefaultInstance()) {
          getManagementDnsZoneBindingBuilder().mergeFrom(value);
        } else {
          managementDnsZoneBinding_ = value;
        }
      } else {
        managementDnsZoneBindingBuilder_.mergeFrom(value);
      }
      if (managementDnsZoneBinding_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Required. The initial values for a new management DNS zone binding.
</pre>

<code>
.google.cloud.vmwareengine.v1.ManagementDnsZoneBinding management_dns_zone_binding = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/CreateManagementDnsZoneBindingRequest.java