Function context_provider 

pub fn context_provider<T>(
    value: T,
    content: impl IntoElementContent + 'static,
) -> Element
where
    T: Clone + PartialEq + 'static,

Provides a typed context value while its declarative descendants are compiled.

The provider is itself a retained component boundary. This keeps the provider stack active for lazily compiled child components and gives context dependency tracking a stable owner independent of the rendering backend.