syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"print_indented!(self,"}]}
source_snippet:                 print_indented!(self, format!("region_scope: {:?}", region_scope), depth_lvl + 1);
context_before:                 self.print_expr(*state, depth_lvl + 2);
context_after:                 print_indented!(self, "match_data:", depth_lvl + 1);