syntax_data: {"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"TargetMetadata"}]}
source_snippet:     TargetMetadata { description: None, tier: Some(3), host_tools: Some(false), std: Some(true) }
context_before: pub(crate) fn meta() -> TargetMetadata {
context_after: }