type NonEmpty<T extends string> = T extends '' ? never : T;
type BemSchema = Record<NonEmpty<string>, {
    _: NonEmpty<string>;
    [element: string]: NonEmpty<string>;
}>;
type BemBlocks<S extends BemSchema> = {
    [B in keyof S]: {
        modifiers: Set<S[B]['_']> | null;
        elements?: {
            [E in Exclude<keyof S[B], '_'>]: {
                modifiers: Set<S[B][E]> | null;
            };
        };
    };
};

export type { BemBlocks as B, BemSchema as a };