userLogin method Null safety

void userLogin(
  1. String username,
  2. String password,
  3. String appkey,
  4. String subDomain
)

Implementation

static void userLogin(
    String username, String password, String appkey, String subDomain) {
  login(
      username, password, appkey, subDomain, BytedeskConstants.ROLE_VISITOR);
}