unregister method

void unregister([
  1. bool all = true
])

Implementation

void unregister([bool all = true]) {
  if (_ua != null) {
    assert(registered, 'ERROR: you must call register first.');
    _ua!.unregister(all: all);
  } else {
    logger.e('ERROR: unregister called, you must call start first.');
  }
}