What is the purpose of the ProxyWidget component in interface libraries and what main tasks does it solve?

The ProxyWidget component in interface libraries such as Flutter is used to create an intermediary widget that does not have its own visual representation but serves to pass data or manage state down the widget tree. Main tasks of ProxyWidget:

• Encapsulation of logic that should be applied to child widgets.
• Providing access to data or state through context (e.g., InheritedWidget in Flutter).
• Simplifying code reuse and state management.

An example in Flutter is InheritedWidget, which is a ProxyWidget that allows child widgets to access data from the context without explicitly passing it through constructors.