/**
 * RSC Handler Helpers
 *
 * Utility functions for RSC request handling.
 */
/**
 * Check if a request body has content to decode
 */
export declare function hasBodyContent(body: FormData | string): boolean;
/**
 * Create a Response with headers merged from the request context's stub response.
 * This ensures headers/cookies set during middleware or handler execution are included.
 * Also triggers any registered onResponse callbacks.
 */
export declare function createResponseWithMergedHeaders(body: BodyInit | null, init: ResponseInit): Response;
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