public Builder addNetworkTags(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureNetworkTagsIsMutable();
      networkTags_.add(value);
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
<pre>
A map of network tags to associate with the VM.
</pre>

<code>repeated string network_tags = 6;</code>

@param value The networkTags to add.
@return This builder for chaining.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/ComputeEngineTargetDefaults.java