{"ast_node_type":"function","tokens":[{"end":61,"kind":"keyword","start":0,"text":"r#\"fn"}]}
            r#"fn f() { let a: u128 = 1; let b: u128 = a }"#,
fn f() { let a: u128 = 1; let b: u128 = unimplemented$0!("asd") }"#,
        )