import { Messenger } from '../socket/messenger';
import type { NetworkTablesBaseTopic } from './base-topic';
import type { NetworkTablesPrefixTopic } from './prefix-topic';
import type { NetworkTablesTopic } from './topic';
import type { NetworkTablesTypes } from '../types/types';
/** The client for the PubSub protocol. */
export declare class PubSubClient {
    private readonly _messenger;
    private readonly topics;
    private readonly prefixTopics;
    private readonly knownTopicParams;
    private static _instances;
    get messenger(): Messenger;
    private constructor();
    /**
     * Gets the instance of the NetworkTables client.
     * @param serverUrl - The URL of the server to connect to. This is not used after the first call.
     * @returns The instance of the NetworkTables client.
     */
    static getInstance(serverUrl: string): PubSubClient;
    /**
     * Reinstantiates the client by resubscribing to all previously subscribed topics
     * and republishing for all previously published topics.
     * @param url - The URL of the server to connect to.
     */
    reinstantiate(url: string): void;
    /**
     * Registers a topic with this PubSubClient.
     * @param topic - The topic to register
     */
    registerTopic<T extends NetworkTablesTypes>(topic: NetworkTablesBaseTopic<T>): void;
    /**
     * Called by the messenger when a topic is updated.
     * @param message - The message data.
     */
    private onTopicUpdate;
    /**
     * Called by the messenger when a topic is announced.
     * @param params - The announce message parameters.
     */
    private onTopicAnnounce;
    /**
     * Called by the messenger when a topic is unannounced.
     * @param params - The unannounce message parameters.
     */
    private onTopicUnannounce;
    /**
     * Called by the messenger when a topic's properties are updated.
     * @param params - The properties message parameters.
     */
    private onTopicProperties;
    /**
     * Updates the value of a topic on the server.
     * @param topic - The topic to update.
     * @param value - The new value of the topic.
     */
    updateServer<T extends NetworkTablesTypes>(topic: NetworkTablesTopic<T>, value: T): void;
    /**
     * Gets the topic with the given ID.
     * @param topicId - The ID of the topic to get.
     * @returns The topic with the given ID, or null if no topic with that ID exists.
     */
    private getTopicFromId;
    /**
     * Gets the topic with the given name.
     * @param topicName - The name of the topic to get.
     * @returns The topic with the given name, or null if no topic with that name exists.
     */
    getTopicFromName(topicName: string): NetworkTablesTopic<any> | null;
    /**
     * Gets the topic with the given name.
     * @param topicName - The name of the topic to get.
     * @returns The topic with the given name, or null if no topic with that name exists.
     */
    getPrefixTopicFromName(topicName: string): NetworkTablesPrefixTopic | null;
    /**
     * Gets the known announcement parameters for a topic.
     * @param id - The ID of the topic.
     * @returns The known announcement parameters for the topic, or undefined if the topic is not known.
     */
    getKnownTopicParams(id: number): {
        type: "string" | "boolean" | "float" | "double" | "int" | "json" | "raw" | "rpc" | "msgpack" | "protobuf" | "boolean[]" | "double[]" | "int[]" | "float[]" | "string[]";
        name: string;
        id: number;
        properties: {
            persistent?: boolean | undefined;
            retained?: boolean | undefined;
            cached?: boolean | undefined;
        };
        pubuid?: number | undefined;
    } | undefined;
    /**
     * Cleans up the client by unsubscribing from all topics and stopping publishing for all topics.
     */
    cleanup(): void;
}