import { NetworkNode } from './types';
/**
 * Check health of an RPC node
 *
 * @param endpoint - WebSocket endpoint URL (wss:// or ws://)
 * @param timeout - Timeout in milliseconds (default: 5000)
 * @returns NetworkNode with health status
 *
 * @example
 * ```ts
 * const node = await checkRpcHealth('wss://gdev.cgeek.fr')
 * if (node.status === 'healthy') {
 *   console.log(`Latency: ${node.latency}ms, Block: ${node.currentBlock}`)
 * }
 * ```
 */
export declare function checkRpcHealth(endpoint: string, timeout?: number): Promise<NetworkNode>;
/**
 * Check health of a Squid/GraphQL indexer node
 *
 * Supports both Hasura and Relay/Graphile schema styles.
 *
 * @param endpoint - GraphQL endpoint URL (https://)
 * @param timeout - Timeout in milliseconds (default: 5000)
 * @returns NetworkNode with health status
 *
 * @example
 * ```ts
 * const node = await checkSquidHealth('https://gt-squid.axiom-team.fr/v1/graphql')
 * if (node.status === 'healthy') {
 *   console.log(`Latency: ${node.latency}ms, Block: ${node.currentBlock}`)
 * }
 * ```
 */
export declare function checkSquidHealth(endpoint: string, timeout?: number): Promise<NetworkNode>;
/**
 * Check health of a datapod node
 *
 * @param endpoint - GraphQL endpoint URL (https://)
 * @param timeout - Timeout in milliseconds (default: 5000)
 * @returns NetworkNode with health status
 */
export declare function checkDatapodHealth(endpoint: string, timeout?: number): Promise<NetworkNode>;