import { HttpService } from "@nestjs/axios";
import { QueryOrPersistedId, SchemaGroup } from "./types";
export type GrpcRequestTypeV6 = QueryOrPersistedId & {
    variables?: Record<string, any> | null | undefined;
} & SchemaGroup;
export declare class PHXGrpcClientSystemServiceV6 {
    private readonly httpService;
    private readonly logger;
    private readonly internalGrpcGateway;
    private readonly projectSource;
    constructor(httpService: HttpService);
    debug(hostname: string): void;
    query({ query, variables, persistedId, schemaGroup, }: GrpcRequestTypeV6): Promise<any>;
    mutation({ query, variables, persistedId, schemaGroup }: GrpcRequestTypeV6): Promise<any>;
}