syntax_data: {"ast_node_type":"import","tokens":[{"end":38,"kind":"keyword","start":0,"text":"use"}]}
source_snippet: use rustc_data_structures::sync::Lock;
context_before: use rustc_data_structures::stable_hasher::{HashStable, HashingControls, StableHasher};
context_after: use rustc_data_structures::unhash::UnhashMap;