syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":".unwrap_or_else(||"}]}
source_snippet:                     .unwrap_or_else(|| String::from("its unsafe preconditions"));
context_before:                     .map(|suggestion| format!("that {}", suggestion))
context_after:                 let suggestion = suggestion