import { Counter } from './counter';
import { Gauge } from './gauge';
import { Histogram } from './histogram';
export declare class Registry {
    private data;
    constructor();
    private validateInput;
    create(type: 'counter', name: string, help?: string): Counter;
    create(type: 'gauge', name: string, help?: string): Gauge;
    create(type: 'histogram', name: string, help?: string, histogramBuckets?: number[]): Histogram;
    /**
     * Returns a string in the prometheus' desired format
     * More info: https://prometheus.io/docs/concepts/data_model/
     * Loop through each metric type (counter, histogram, etc);
     *
     * @return {string}
     */
    metrics(): string;
    reset(): this;
    clear(): this;
    get(type: 'counter', name: string): Counter | undefined;
    get(type: 'gauge', name: string): Gauge | undefined;
    get(type: 'histogram', name: string): Histogram | undefined;
}