watch method

Stream watch(
  1. dynamic target, {
  2. int limit = 0,
})

Implementation

Stream watch(dynamic target, {int limit = 0}) {
  if (target is String) return _watchDoc(target);
  if (target is Map<String, String>) return _watchQuery(target, limit);
  throw ArgumentError('watch() expects a String (doc ID) or Map<String, String> (tags)');
}