public com.google.cloud.vertexai.api.ExplanationParametersOrBuilder getParametersOrBuilder() {
      if (parametersBuilder_ != null) {
        return parametersBuilder_.getMessageOrBuilder();
      } else {
        return parameters_ == null
            ? com.google.cloud.vertexai.api.ExplanationParameters.getDefaultInstance()
            : parameters_;
      }
    }
<pre>
Required. Parameters that configure explaining of the Model's predictions.
</pre>

<code>
.google.cloud.vertexai.v1.ExplanationParameters parameters = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ExplanationSpec.java