User.fromV2TIMUserFullInfo constructor
      
      User.fromV2TIMUserFullInfo(
    
    
- V2TimUserFullInfo imUserInfo
Implementation
User.fromV2TIMUserFullInfo(V2TimUserFullInfo imUserInfo)
    : this(
          userId: imUserInfo.userID ?? '',
          name: imUserInfo.nickName ?? '',
          avatarUrl: imUserInfo.faceUrl ?? '');