/**
 * Composite key utilities for server instance identification
 *
 * This module provides utilities for generating and parsing composite keys
 * that uniquely identify a server instance across multiple instances
 * of the same server name.
 *
 * Format: `${serverName}-${serverIndex}`
 * Example: 'my-server-0', 'my-server-1', 'test-server-0'
 */
/**
 * Generates a composite key from serverName and serverIndex
 * @param serverName - The server name
 * @param serverIndex - The instance index
 * @returns Composite key string
 * @example getCompositeKey('my-server', 0) => 'my-server-0'
 */
export declare function getCompositeKey(serverName: string, serverIndex: number): string;
/**
 * Parses a composite key back into serverName and serverIndex
 * @param key - The composite key to parse
 * @returns Object with serverName and serverIndex, or null if invalid
 * @example parseCompositeKey('my-server-0') => { serverName: 'my-server', serverIndex: 0 }
 */
export declare function parseCompositeKey(key: string): {
    serverName: string;
    serverIndex: number;
} | null;
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