syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"before.push(diff_pretty(state,"}]}
source_snippet:             before.push(diff_pretty(state, &self.prev_state, analysis));
context_before:         if let Some(before) = self.before.as_mut() {
context_after:             self.prev_state.clone_from(state)