{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"///"}]}
    ///                          ^^^^^^^^ inner generic params
    /// opaque foo::<'a>::opaque<'_a, '_b>: Into<Foo<'_a>> + '_b;
    /// fn foo<'a>: for<'b> fn(&'b u8) -> foo::<'a>::opaque::<'a, 'b>