import { ClientMiddleware } from 'nice-grpc-common';
import { Counter, Histogram } from 'prom-client';
import { codeLabel, methodLabel, pathLabel, serviceLabel, typeLabel } from './common';
type PrometheusClientMiddlewareOptions = {
    clientStartedMetric?: Counter<typeof typeLabel | typeof serviceLabel | typeof methodLabel | typeof pathLabel>;
    clientHandledMetric?: Counter<typeof typeLabel | typeof serviceLabel | typeof methodLabel | typeof pathLabel | typeof codeLabel>;
    clientStreamMsgReceivedMetric?: Counter<typeof typeLabel | typeof serviceLabel | typeof methodLabel | typeof pathLabel>;
    clientStreamMsgSentMetric?: Counter<typeof typeLabel | typeof serviceLabel | typeof methodLabel | typeof pathLabel>;
    clientHandlingSecondsMetric?: Histogram<typeof typeLabel | typeof serviceLabel | typeof methodLabel | typeof pathLabel | typeof codeLabel>;
};
export declare function prometheusClientMiddleware(options?: PrometheusClientMiddlewareOptions): ClientMiddleware;
export {};