syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// trait aliases in the list of clauses. For each trait predicate, record a stack
context_before: /// Return the trait and projection predicates that come from eagerly expanding the
context_after: /// of spans that trace from the user-written trait alias bound. For projection predicates,