import { type RuntimeUsage } from "veryfront/provider/shared";
export declare const MAX_GOOGLE_SSE_CHUNK_BYTES: number;
export declare const MAX_GOOGLE_SSE_BUFFER_CODE_UNITS: number;
export declare const MAX_GOOGLE_RETAINED_STATE_BYTES: number;
export declare const MAX_GOOGLE_RETAINED_STATE_ITEMS = 8192;
export declare function normalizeGoogleFinishReason(raw: unknown): string | {
    unified: string;
    raw: string;
} | null;
export declare function extractGoogleUsage(payload: unknown): RuntimeUsage | undefined;
export declare function extractFirstGoogleCandidate(payload: unknown): Record<string, unknown> | undefined;
export declare function extractGoogleCandidateParts(payload: unknown): Array<Record<string, unknown>>;
type GoogleStreamContext = {
    providerLabel?: string;
};
export declare function streamGoogleCompatibleParts(stream: ReadableStream<Uint8Array>, context?: GoogleStreamContext): AsyncIterable<unknown>;
export {};
//# sourceMappingURL=google-stream.d.ts.map