How to use the react-native-agora.RtcEngine.init function in react-native-agora

console.log('[RtcEngine] onAudioVolumeIndication', data);
    });
    RtcEngine.on('clientRoleChanged', (data) => {
      console.log("[RtcEngine] onClientRoleChanged", data);
    })
    RtcEngine.on('error', (data) => {
      if (data.error === 17) {
        RtcEngine.leaveChannel().then(_ => {
          RtcEngine.destroy();
          this.props.onCancel(data);
        });
      }
    })
    console.log("[CONFIG]", JSON.stringify(config));
    console.log("[CONFIG.encoderConfig", config.videoEncoderConfig);
    RtcEngine.init(config);
  }