import type { Context } from '@deepseek-ai/cordis';
import type { Agent } from '@deepseek-ai/dsh-agent';
import type { WebSearchProvider } from '@deepseek-ai/dsh-web';
/**
 * Compose a known official fallback only when permitted. The public native class
 * owns transport, redirects and parsing. A per-operation instance keeps backend
 * disclosure aligned with that operation's options even during concurrent calls.
 * canContinue must be the initiating router's captured operation-local guard.
 */
export declare function createDeepSeekSearchFallback(ctx: Context, owner: Agent | undefined, canContinue: () => boolean): Promise<WebSearchProvider>;
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