setContext method
Implementation
void setContext({VoidCallback? callback, VoidCallback? errorback}) {
if (_callback != null) _callback = callback;
if (_errorback != null) _errorback = errorback;
}
void setContext({VoidCallback? callback, VoidCallback? errorback}) {
if (_callback != null) _callback = callback;
if (_errorback != null) _errorback = errorback;
}