{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"is_iterator_singleton(expr_elements.iter().zip(in_ty_elements.iter()).filter("}]}
                is_iterator_singleton(expr_elements.iter().zip(in_ty_elements.iter()).filter(
            let Some((drill_expr, drill_ty)) =
                    |(_expr_elem, in_ty_elem)| find_param_in_ty((*in_ty_elem).into(), param),