syntax_data: {"ast_node_type":"other","tokens":[{"end":26,"kind":"keyword","start":0,"text":"lines:"}]}
source_snippet:     lines: vec![0, 7, 27],
context_before:     text: "01\t345\n789abcΔf01234567\u{07}9\nbcΔf",
context_after:     multi_byte_chars: vec![(13, 2), (29, 2)],