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

<code>
repeated .google.cloud.telcoautomation.v1alpha1.File files = 3 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/HydratedDeployment.java