/** One request on Herdr's newline-delimited JSON socket API. */
export interface HerdrSocketRequest {
    method: string;
    params: Record<string, unknown>;
}
/**
 * Send one request over a fresh socket connection and resolve the parsed
 * response line. An error response, a timeout, an oversized or malformed
 * response, and a closed socket all reject.
 */
export declare const herdrSocketRequest: (socketPath: string | undefined, request: HerdrSocketRequest, caller?: string) => Promise<unknown>;
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