import type { LanguageModelV4StreamResult } from "@ai-sdk/provider";
export declare const MAX_STREAM_RESULT_HEADERS = 1024;
export declare const MAX_STREAM_RESULT_HEADER_LENGTH = 65536;
export declare const MAX_STREAM_RESULT_HEADER_CHARS = 1048576;
export declare function safeStreamRequest(result: LanguageModelV4StreamResult): LanguageModelV4StreamResult["request"];
export declare function safeStreamResponse(result: LanguageModelV4StreamResult): LanguageModelV4StreamResult["response"];
export interface StreamMetadataSnapshot {
    request: LanguageModelV4StreamResult["request"];
    response: LanguageModelV4StreamResult["response"];
}
export declare function snapshotStreamResultMetadata(result: LanguageModelV4StreamResult): StreamMetadataSnapshot;
export declare function copyStreamRequest(request: LanguageModelV4StreamResult["request"]): LanguageModelV4StreamResult["request"];
export declare function copyStreamResponse(response: LanguageModelV4StreamResult["response"]): LanguageModelV4StreamResult["response"];