{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"if"}]}
                if fn_ptr_a.sig == fn_ptr_b.sig && fn_ptr_a.num_binders == fn_ptr_b.num_binders =>
            (TyKind::Function(fn_ptr_a), TyKind::Function(fn_ptr_b))
            {