Function IsAsyncStackCaptureEnabledForRealm 

pub unsafe extern "C" fn IsAsyncStackCaptureEnabledForRealm(
    cx: *mut JSContext,
) -> bool

Returns true if capturing stack trace data to associate with an asynchronous operation is currently enabled for the current context realm.

Users should check this state before capturing a stack that will be passed back to AutoSetAsyncStackForNewCalls later, in order to avoid capturing a stack for async use when we don’t actually want to capture it.