How to pass data from a custom component to the parent page (Freedom UI)?

Hi Creatio Community!
I’m building a custom Freedom UI component and need some advice on how to pass data from the component back to the parent page.
I have a custom component with some internal logic and a variable whose value changes based on user interaction inside the component (e.g. clicks, selections).
Now I want to pass this variable's value back to the parent page where the component is used — for example, to trigger some business logic or store it in a page field.
Is there a way to work with the page context from within the custom component?
Or maybe there's a recommended pattern for passing data upward from a component to the parent page in Freedom UI?

Any examples or best practices would be greatly appreciated!

Thanks in advance