syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // ...there exists a reference transition out of `dst_state`...
context_before:                 self.src.refs_from(src_state).map(|(src_ref, src_state_prime)| {
context_after:                     Quantifier::ThereExists.apply(self.dst.refs_from(dst_state).map(