public Builder addFiles(int index, com.google.cloud.telcoautomation.v1alpha1.File value) {
      if (filesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureFilesIsMutable();
        files_.add(index, value);
        onChanged();
      } else {
        filesBuilder_.addMessage(index, value);
      }
      return this;
    }
<pre>
Optional. Files present in a deployment.
When invoking UpdateDeployment API, only the modified files should be
included in this. Files that are not included in the update of a deployment
will not be changed.
</pre>

<code>
repeated .google.cloud.telcoautomation.v1alpha1.File files = 8 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/Deployment.java