syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"kind.descr(item.to_def_id())"}]}
source_snippet:                 kind.descr(item.to_def_id())
context_before:                 "`opaque_types_defined_by` not defined for {} `{item:?}`",
context_after:             );