pop method

@override void pop(String key)

Restores the previous value of a configuration key.

Implementation

@override
void pop(String key) {
  if (_overrideStack.containsKey(key) && _overrideStack[key]!.isNotEmpty) {
    final previous = _overrideStack[key]!.removeLast();
    set(key, previous);
  }
}