syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// Any semantic equality, e.g. of unevaluated consts, and inference variables have
context_before: /// Relates `a` and `b` structurally, calling the relation for all nested values.
context_after: /// to be handled by the caller.