syntax_data: {"ast_node_type":"import","tokens":[{"end":36,"kind":"keyword","start":0,"text":"use"}]}
source_snippet: use rustc_trait_selection::traits::{
context_before: use rustc_trait_selection::traits::query::CanonicalPredicateGoal;
context_after:     EvaluationResult, Obligation, ObligationCause, OverflowError, SelectionContext, TraitQueryMode,