How to grant only mic permission without camera permission

We are using openvidu webcomponent exmple:
https://docs.openvidu.io/en/2.14.0/tutorials/openvidu-webcomponent/

In our case there are two types of users:

  1. Teacher who publish audio & video.
  2. Students who publish only audio.
    But in case of students also it asks camera permission, how could I stop asking camera permission in case of student.

By default, the webcomponent initialize de publishers with audio and video tracks.

You should modify the webcomponent initializing the students publisher only with audio using OV.initPublisher and setting, in the publisherProperties, videoSource to false

In openvidu-webcomponent example there is nothing mentioned about this OV.initPublisher, but in other example it is use with the openvidu-browser.js, so how could I use in this tutorial.
https://docs.openvidu.io/en/2.14.0/tutorials/openvidu-webcomponent/

You have to edit OpenVidu Call and build the webcomponent from it

https://docs.openvidu.io/en/2.14.0/developing/#compiling-openvidu-webcomponent