{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"#[salsa::invoke(DeclarativeMacroExpander::expander)]"}]}
    #[salsa::invoke(DeclarativeMacroExpander::expander)]
    /// Fetches (and compiles) the expander of this decl macro.
    fn decl_macro_expander(