syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"\"diagnostic-unicode\""}]}
source_snippet:                 "diagnostic-unicode" => {
context_before:                 "diagnostic-short" => json_rendered = HumanReadableErrorType::Short,
context_after:                     json_rendered = HumanReadableErrorType::Unicode;