syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"Ok(i)"}]}
source_snippet:             Ok(i) => self.normalized_pos[i].diff,
context_before:         let diff = match self.normalized_pos.binary_search_by(|np| np.pos.cmp(&pos)) {
context_after:             Err(0) => 0,