syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"PatKind::AscribeUserType"}]}
source_snippet:             PatKind::AscribeUserType { ascription, subpattern } => {
context_before:             }
context_after:                 print_indented!(self, "AscribeUserType: {", depth_lvl + 1);