syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"self.print_expr(*arg,"}]}
source_snippet:                 self.print_expr(*arg, depth_lvl + 1);
context_before:                 print_indented!(self, "Deref {", depth_lvl);
context_after:                 print_indented!(self, "}", depth_lvl);