/**
 * Shared test helpers for transport tests
 */
/**
 * Converts callback-style service vector methods to Promises for testing.
 *
 * This helper allows tests to work with both callback-style and Promise-style
 * service vector methods. It first attempts to call the method with a callback,
 * and falls back to Promise-style if that fails.
 *
 * @param method - The service vector method to call
 * @param args - Arguments to pass to the method (excluding the callback)
 * @returns Promise that resolves with the result or rejects with an error
 *
 * @example
 * ```typescript
 * const result = await callServiceVector<number[]>(
 *   capturedServiceVector.getHoldingRegister.bind(capturedServiceVector),
 *   0,
 *   1
 * )
 * ```
 */
export declare const callServiceVector: <T>(method: (...args: unknown[]) => unknown, ...args: unknown[]) => Promise<T>;
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