import { A2AClient } from "../a2a/client.js";
import type { Message, Task } from "../a2a/types.js";
export interface AgentEndpointOptions {
    /**
     * Optional URL base used when resolving relative app URLs.
     */
    base?: string;
}
export interface SendMessageOptions {
    apiKey?: string;
    contextId?: string;
    metadata?: Record<string, unknown>;
    requestTimeoutMs?: number;
    /**
     * If the target does not support streaming, fall back to async send + poll.
     * Defaults to true.
     */
    fallbackToPolling?: boolean;
    timeoutMs?: number;
    userEmail?: string;
    orgDomain?: string;
    orgSecret?: string;
}
export declare function getMcpUrl(url: string, options?: AgentEndpointOptions): string;
export declare function getA2AUrl(url: string, options?: AgentEndpointOptions): string;
export declare function getAgentCardUrl(url: string, options?: AgentEndpointOptions): string;
/**
 * Send a text prompt to an Agent-Native A2A endpoint and yield text deltas.
 */
export declare function sendMessage(url: string, text: string, options?: SendMessageOptions): AsyncGenerator<string>;
export { A2AClient };
export type { Message, Task };
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