import type { MachineConfig } from 'xstate';
/**
 * Detects if an XState machine configuration contains any parallel states.
 * Uses a stack-based approach for efficient traversal of the state hierarchy.
 * @param config - XState machine configuration
 * @returns True if the machine contains at least one parallel state, false otherwise
 */
export declare const detectParallelStates: (config?: MachineConfig<any, any, any, any, any, any, any, any, any, any, any>) => boolean;