syntax_data: {"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let len = std::fs::metadata(kernel_max).unwrap().len() as usize;
context_before:     let kernel_max = Path::new("/sys/devices/system/cpu/kernel_max");
context_after:     let real = std::fs::read(kernel_max).unwrap();