Function tuple_struct_partial_cmp 

pub fn tuple_struct_partial_cmp(
    a: &dyn TupleStruct,
    b: &dyn PartialReflect,
) -> Option<Ordering>

Lexicographically compares two TupleStruct values and returns their ordering.

Returns None if the comparison couldn’t be performed (e.g., kinds mismatch or an element comparison returns None).