export type UpstreamCall = "uls-api-key" | "uls-token-exchange" | "account-api";
/**
 * Performs an HTTP call under a hard deadline, composed with any signal the
 * caller already passed.
 *
 * Returns the response, HTTP errors included, for the caller to classify.
 * Throws the original error when no response arrived at all, logged once here
 * with the call identity and the deadline that applied.
 */
export declare function fetch(call: UpstreamCall, url: string, init?: RequestInit, context?: Record<string, unknown>): Promise<Response>;
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