syntax_data: {"ast_node_type":"function","tokens":[{"end":52,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn as_clause(self) -> Option<Clause<'tcx>> {
context_before:     /// Matches a `PredicateKind::Clause` and turns it into a `Clause`, otherwise returns `None`.
context_after:         match self.kind().skip_binder() {