export declare const sigma_binding: {
    $grammar: {
        "sigma_binding:nameless": {
            exp: string;
        }[];
        "sigma_binding:named": (string | {
            name: string;
            exp?: undefined;
        } | {
            exp: string;
            name?: undefined;
        })[];
    };
};
export declare const sigma_bindings: {
    $grammar: {
        "sigma_bindings:sigma_bindings": ({
            entries: {
                $ap: string[];
            };
            last_entry?: undefined;
            $ap?: undefined;
        } | {
            last_entry: string;
            entries?: undefined;
            $ap?: undefined;
        } | {
            $ap: string[];
            entries?: undefined;
            last_entry?: undefined;
        })[];
    };
};
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