syntax_data: {"ast_node_type":"import","tokens":[{"end":70,"kind":"keyword","start":0,"text":"use"}]}
source_snippet: use rustc_data_structures::unord::{ExtendUnord, UnordItems, UnordSet};
context_before: use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
context_after: use rustc_errors::ErrorGuaranteed;