syntax_data: {"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let (major, minor, patch) = match (&*target.os, &*target.arch, &*target.abi) {
context_before:     pub fn minimum_deployment_target(target: &Target) -> Self {
context_after:             ("macos", "aarch64", _) => (11, 0, 0),