import { IExecuteFunctions, IDataObject } from 'n8n-workflow';
export declare class GradioClient {
    static executeWithRetry<T>(operation: () => Promise<T>, maxRetries?: number, baseDelay?: number): Promise<T>;
    static validateApiEndpoint(executeFunctions: IExecuteFunctions, spaceUrl: string, apiName: string, headers: IDataObject): Promise<{
        isValid: boolean;
        error?: string;
    }>;
    static predict(executeFunctions: IExecuteFunctions, spaceUrl: string, apiName: string, inputParameters: any[], headers: IDataObject, timeout?: number, retryAttempts?: number): Promise<any>;
    static parseServerSentEvents(responseBody: string): any;
}