get method Null safety

Future get(
  1. {dynamic handleId}
)

Implementation

Future<dynamic> get({handleId}) async {
  var suffixUrl = '';
  if (sessionId != null && handleId == null) {
    suffixUrl = suffixUrl + "/$sessionId";
  } else if (sessionId != null && handleId != null) {
    suffixUrl = suffixUrl + "/$sessionId/$handleId";
  }
  return parse((await http.get(Uri.parse(url! + suffixUrl))).body);
}