syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"text:"}]}
source_snippet:     text: "01234β789\nbcdef0123456789abcdef",
context_before:     case: newline_and_multi_byte_char_in_same_chunk,
context_after:     lines: vec![0, 11],