syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// performed to match/reject the pattern, and what the desired test outcome is.
context_before: /// Partial summary of a [`thir::Pat`], indicating what sort of test should be
context_after: /// This avoids having to perform a full match on [`thir::PatKind`] in some places,