{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"def.usages(&ctx.sema).in_scope(&search_scope).at_least_one()"}]}
    def.usages(&ctx.sema).in_scope(&search_scope).at_least_one()
    let search_scope = SearchScope::single_file(ctx.file_id());
}