import { ExpressionParser } from "../ExpressionParser";
import { Expression } from "../../../SearchReq";
import { Bitset } from "../../../hook-struct/Bitset";
import { FactoryParser } from "../FactoryParser";
import { RequestContext } from "../../../RequestContext";
export declare class NotExpressionParser implements ExpressionParser {
    filter(expr: Expression, parser: FactoryParser, requestContext: RequestContext): Promise<Bitset | null>;
}