import { type ProxyContext } from "./handler.js";
import { type ProxyRequestInit } from "./request-init.js";
/**
 * Build the standalone proxy's renderer request from the canonical shared
 * context-header policy.
 *
 * Keeping the complete request-init boundary here prevents split mode from
 * drifting from combined mode when end-to-end or internal header policy
 * changes. Trace propagation is added only after untrusted hop-by-hop and
 * caller-supplied internal headers have been removed.
 */
export declare function createSplitForwardRequestInit(request: Pick<Request, "headers" | "method">, context: ProxyContext, body: ReadableStream<Uint8Array> | null, signal: AbortSignal): ProxyRequestInit;
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