syntax_data: {"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"Indirect"}]}
source_snippet:     Indirect { attrs: ArgAttributes, meta_attrs: Option<ArgAttributes>, on_stack: bool },
context_before:     /// `on_stack` cannot be true for unsized arguments, i.e., when `meta_attrs` is `Some`.
context_after: }