metadata property
Merged application-defined metadata for the current route match.
Metadata is inherited from parent routes, and child routes override
parent values with the same key. For example, if a parent route has
{'section': 'library', 'requiresAuth': true} and the matched child route
has {'requiresAuth': false, 'title': 'Preview'}, this value is
{'section': 'library', 'requiresAuth': false, 'title': 'Preview'}.
Implementation
final Map<String, dynamic> metadata;