{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"fn_def.syntax().ancestors().find_map(|node|"}]}
    fn_def.syntax().ancestors().find_map(|node| {
fn parent_test_module(sema: &Semantics<'_, RootDatabase>, fn_def: &ast::Fn) -> Option<hir::Module> {
        let module = ast::Module::cast(node)?;