An unmodifiable view of the named arguments of the call.
If the member is a getter, setter or operator, the named arguments map is always empty.
Map<Symbol, dynamic> get namedArguments;
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/Invocation/namedArguments.html