syntax_data: {"ast_node_type":"import","tokens":[{"end":71,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // We can't use `lines.get(line_number+1)` because we might
context_before:         fn get_until_newline(src: &str, begin: usize) -> &str {
context_after:             // be parsing when we call this function and thus the current