{"ast_node_type":"import","tokens":[{"end":66,"kind":"keyword","start":0,"text":"///"}]}
    /// colons can cause problems when parsing where clauses), and
    /// [RecoverReturnSign::OnlyFatArrow] allows for recovering only `fn foo() => u8` (recovering
    /// [RecoverReturnSign::No] doesn't allow for any recovery of the return type arrow