A Resource encapsulates the logic for creating and disposing of some expensive object which has a lifecycle.
Actual Resources should be retrieved using
Build system implementations should be the only users that directly instantiate a ResourceManager since they can handle the lifecycle guarantees in a sane way.
- hashCode → int
The hash code for this object.
- runtimeType → Type
A representation of the runtime type of the object.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
) → String
Returns a string representation of this object.
dynamic other) → bool
The equality operator.