Support for context variable in Starlette

Hi friends,

How can I set the context variable in Starlette? Is there any support for that?
My use case is that, need to set a value to a variable in one file and need to access that from some other files (Example: setting some query params from the request in middleware and want to access that variable in different files)

I would rather put it into a Scope context instead of sharing it globally.