syntax_data: {"ast_node_type":"import","tokens":[{"end":55,"kind":"keyword","start":0,"text":"use"}]}
source_snippet: use rustc_data_structures::fx::{FxHashMap, FxIndexSet};
context_before: use rustc_abi::Size;
context_after: use rustc_macros::{Decodable, Encodable, HashStable_Generic};