import type { AssistantMessage, AssistantMessageEventStream } from "../types";
/**
 * Anthropic Messages API (https://docs.anthropic.com/en/api/messages) ↔ pi-ai
 * gateway translation. Inbound: foreign HTTP body → omp Context. Outbound:
 * omp AssistantMessage[Stream] → Anthropic-shaped JSON / SSE.
 */
import type { AuthGatewayStreamControl, AuthGatewayParsedRequest as ParsedRequest } from "../auth-gateway/types";
export type { ParsedRequest };
export declare function parseRequest(body: unknown, headers?: Headers): ParsedRequest;
export declare function encodeResponse(message: AssistantMessage, requestedModelId: string): Record<string, unknown>;
export declare function encodeStream(events: AssistantMessageEventStream, requestedModelId: string, _options?: ParsedRequest["options"], control?: AuthGatewayStreamControl): ReadableStream<Uint8Array>;
/**
 * Anthropic error envelope: `{ type: "error", error: { type, message } }`.
 * See https://docs.anthropic.com/en/api/errors. Returned as a `Response` so
 * the gateway can hand it straight back to the client without extra wrapping.
 */
export declare function formatError(status: number, type: string, message: string): Response;