syntax_data: {"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"metadata:"}]}
source_snippet:         metadata: TargetMetadata {
context_before:         llvm_target: "x86_64-pc-windows-msvc".into(),
context_after:             description: Some("64-bit MSVC (Windows 7+)".into()),