syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"s.add_bounds(synstructure::AddBounds::Fields);"}]}
source_snippet:     s.add_bounds(synstructure::AddBounds::Fields);
context_before:     s.filter(|bi| !has_ignore_attr(&bi.ast().attrs, "type_foldable", "identity"));
context_after:     s.bound_impl(