public Builder clearPresets() {
      if (presetsBuilder_ == null) {
        if (configCase_ == 4) {
          configCase_ = 0;
          config_ = null;
          onChanged();
        }
      } else {
        if (configCase_ == 4) {
          configCase_ = 0;
          config_ = null;
        }
        presetsBuilder_.clear();
      }
      return this;
    }
<pre>
Simplified preset configuration, which automatically sets configuration
values based on the desired query speed-precision trade-off and modality.
</pre>

<code>.google.cloud.vertexai.v1.Presets presets = 4;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Examples.java