{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"Definition::Function(f)"}]}
                Definition::Function(f) => f.as_assoc_item(db),
                Definition::TypeAlias(ta) => ta.as_assoc_item(db),
                Definition::ExternCrateDecl(it) => return it.try_to_nav(db),