import type { ArvoContract, VersionedArvoContract } from 'arvo-core';
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
 *
 * @example
 * const machine = {
 *   states: {
 *     processing: {
 *       type: 'parallel',
 *       states: {
 *         upload: { ... },
 *         scan: { ... }
 *       }
 *     }
 *   }
 * }
 * const hasParallel = detectParallelStates(machine) // Returns true
 */
export declare const detectParallelStates: (config?: MachineConfig<any, any, any, any, any, any, any, any, any, any, any>) => boolean;
/**
 * Validates that all service contracts in a collection have unique URIs.
 *
 * Iterates through the provided contracts and checks if any URI appears more than once.
 * Multiple versions of the same contract (with the same URI) are not allowed.
 *
 * @param contracts - A record mapping contract keys to their respective ArvoContract objects
 * @returns An object with a boolean result indicating if all contracts are unique, and the error keys if not
 */
export declare const areServiceContractsUnique: (contracts: Record<string, ArvoContract | VersionedArvoContract<any, any>>) => {
    result: false;
    keys: [string, string];
    contractUri: string;
} | {
    result: true;
};