import { CopilotClient, CopilotRequestHandler } from "@github/copilot-sdk";
import type { CopilotClientOptions, CopilotRequestContext } from "@github/copilot-sdk";
/** Only OpenAI-compatible BYOK clients need the CLI 1.0.83 workaround. */
export declare function needsByokRequestCompatibility(provider: unknown): boolean;
/**
 * CLI 1.0.83 leaks CAPI's `snippy: { enabled: false }` into BYOK chat
 * completions for GPT-5.6 models. Azure rejects the request before inference.
 * Keep this shim at the model HTTP boundary, not in prompts or model aliases.
 *
 * Attach ONLY to a dedicated OpenAI/Azure BYOK client: requestHandler forwards
 * all model traffic through Node, including WebSockets. Never attach it to a
 * GitHub Copilot client (native transport/auth and CAPI parameters must remain
 * intact), or an Anthropic/WIF client. Remove once the provider compatibility
 * tests pass without it. No response buffering, retry, or parameter allowlist.
 */
export declare class ByokRequestCompatibility extends CopilotRequestHandler {
    protected sendRequest(request: Request, context: CopilotRequestContext): Promise<Response>;
}
/** Shared by durable sessions and the short-lived title/distillation clients. */
export declare function createCopilotClient(options: CopilotClientOptions, provider?: unknown): CopilotClient;
export declare const BYOK_CLIENT_PREFIX = "byok-openai\0";
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