import { Request } from '@strata-js/strata';
import { type DefinedError, Options as AJVOptions } from 'ajv';
export type AjvPayloadValidationSchemaConfig = Record<string, Record<string, unknown>>;
export declare class AjvPayloadValidationMiddleware {
    #private;
    constructor(config: AjvPayloadValidationSchemaConfig, ajvOptions?: AJVOptions, errorFormatter?: (errors: DefinedError[]) => unknown);
    beforeRequest(request: Request): Promise<Request | undefined>;
}