import { BusinessError, FunctionResult, FunctionDefinition } from './service-provider-model.js';
/**
 * Validates a function result against the expected success codes and extracts the data.
 *
 * @param result - The raw function result from the provider
 * @param functionDef - The function definition with successCodes
 * @returns The extracted resultData, typed as T
 * @throws BusinessError if statusCode is not in successCodes
 *
 * @example
 * ```typescript
 * public loadGalleryList(): Observable<DJGalleryItem[]> {
 *   const call = { object: "galleryList" };
 *   return from(
 *     services.functions.callFunction(handlePutFunc.name, call)
 *       .then((result) => validateFunctionResult<DJGalleryItem[]>(result, handlePutFunc))
 *   );
 * }
 * ```
 */
export declare function validateFunctionResult<T>(result: FunctionResult, functionDef: FunctionDefinition): T;
/**
 * Validates a function result with a custom success code array.
 * Use this when you don't have a full FunctionDefinition available.
 *
 * @param result - The raw function result from the provider
 * @param successCodes - Array of valid status codes (default: [200])
 * @returns The extracted resultData, typed as T
 * @throws BusinessError if statusCode is not in successCodes
 */
export declare function validateResult<T>(result: FunctionResult, successCodes?: number[]): T;
/**
 * Type guard to check if an error is a BusinessError.
 * Useful in catch blocks to distinguish business errors from technical errors.
 *
 * @example
 * ```typescript
 * catchError((err) => {
 *   if (isBusinessError(err)) {
 *     console.log("Business error:", err.code, err.message);
 *   }
 *   return of(failAction(err));
 * })
 * ```
 */
export declare function isBusinessError(error: unknown): error is BusinessError;
/**
 * Extracts error information for logging/display.
 * Handles both BusinessError and standard Error.
 */
export declare function extractErrorInfo(error: unknown): {
    message: string;
    code: number;
};
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