{"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"#[subdiagnostic]"}]}
    #[subdiagnostic]
    pub(crate) suggestion: Option<SelfImportsOnlyAllowedWithinSuggestion>,
    pub(crate) mpart_suggestion: Option<SelfImportsOnlyAllowedWithinMultipartSuggestion>,