syntax_data: {"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"union(self.src.bytes_from(src_state),"}]}
source_snippet:                 union(self.src.bytes_from(src_state), self.dst.bytes_from(dst_state)).filter_map(
context_before:             let bytes_answer = src_quantifier.apply(
context_after:                     |(_range, (src_state_prime, dst_state_prime))| {