Function event_network_quality_change

event_network_quality_change(payload): void
Occurs when network quality changes. The network quality reflects the video quality. The data will broadcast to all users only when the user starts video.
Parameters
- payload: {
      level: number;
      type: string;
      userId: number;
  }
  - level: number
    Network quality level. Values can be integers from 0 to 5. Poor: 0, 1 Normal: 2 Good: 3, 4, 5
  - type: string
    Whether the network level is for uplink or downlink. Values can only be 'uplink' or 'downlink'.
  - userId: number
    User ID.
Returns void