public Builder clearPreset() {
            if (encodingOptionsCase_ == 3) {
                encodingOptionsCase_ = 0;
                encodingOptions_ = null;
                onChanged();
            }
            return this;
        }
<code>.livekit.IngressAudioEncodingPreset preset = 3;</code>

@return This builder for chaining.
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/ingress/IngressAudioOptions.java