<itemvalue="Returns a JSON Web Token (JWT) used to identify the user to a Firebase service. Returns the current token if it has not expired. Otherwise, this will refresh the token and return a new one. If [forceRefresh] is `true`, the token returned will be refreshed regardless of token expiration."/>
<itemvalue="Runtime representation of a type. Type objects represent types. A type object can be created in several ways: By a type literal, a type name occurring as an expression, like `Type type = int;`, or a type variable occurring as an expression, like `Type type = T;`. By reading the run-time type of an object, like `Type type = o.runtimeType;`. Through `dart:mirrors`. A type object is intended as an entry point for using `dart:mirrors`. The only operations supported are comparing to other type objects for equality, and converting it to a string for debugging."/>