syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"|(_range,"}]}
source_snippet:                     |(_range, (src_state_prime, dst_state_prime))| {
context_before:                 union(self.src.bytes_from(src_state), self.dst.bytes_from(dst_state)).filter_map(
context_after:                         match (src_state_prime, dst_state_prime) {