syntax_data: {"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let mut new_list = SmallVec::<[_; 8]>::with_capacity(slice.len());
context_before:             // An element changed, prepare to intern the resulting list
context_after:             new_list.extend_from_slice(&slice[..i]);