{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"("}]}
        ( Static { safety: hir::Safety::Unsafe, mutability: ast::Mutability::Not, nested: false } )
        ( Closure                                  )
        ( Static { safety: hir::Safety::Safe, mutability: ast::Mutability::Not, nested: false } )