syntax_data: {"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:             } else {
context_before:                 extract_source(src, start_index, end_index)
context_after:                 Err(SpanSnippetError::SourceNotAvailable { filename: local_begin.sf.name.clone() })