Function InvokeOSLCountUPP 

pub unsafe extern "C-unwind" fn InvokeOSLCountUPP(
    desired_type: DescType,
    container_class: DescType,
    container: *const AEDesc,
    result: *mut c_long,
    user_upp: OSLCountUPP,
) -> i16

Available on crate features AEDataModel and AEObjects only.

Safety

• container must be a valid pointer.
• result must be a valid pointer.
• user_upp must be implemented correctly.