{"ast_node_type":"import","tokens":[{"end":84,"kind":"keyword","start":0,"text":"///"}]}
    /// case an error should be reported to the user, because it usually happens due
    /// return `None` if the name already has a definition associated with it. In that
    /// to user’s fault (e.g., misuse of `#[no_mangle]` or `#[export_name]` attributes).