/// This field is omitted if getSuggestions was used rather than
  /// getSuggestions2.
  ///
  /// This field is omitted if this suggestion corresponds to a locally
  /// declared element.
  ///
  /// If this suggestion corresponds to an already imported element, then this
  /// field is the URI of a library that provides this element, not the URI of
  /// the library where the element is declared.
  ///
  /// If this suggestion corresponds to an element from a not yet imported
  /// library, this field is the URI of a library that could be imported to
  /// make this suggestion accessible in the file where completion was
  /// requested, such as package:foo/bar.dart or
  /// file:///home/me/workspace/foo/test/bar_test.dart.
  String? libraryUri;
  /// True if the suggestion is for an element from a not yet imported library.
  /// This field is omitted if the element is declared locally, or is from
  /// library is already imported, so that the suggestion can be inserted as
  /// is, or if getSuggestions was used rather than getSuggestions2.
  bool? isNotImported;