getUserByPhoneNumber method
Looks up the user identified by the provided phone number and returns a future that is fulfilled with a user record for the given user if that user is found.
Implementation
Future<UserRecord> getUserByPhoneNumber(String phoneNumber) async {
var response =
await _authRequestHandler.getAccountInfoByPhoneNumber(phoneNumber);
// Returns the user record populated with server response.
return UserRecord.fromJson(response['users'][0]);
}