export interface StreamedBlockForPersistence {
    id?: string;
    role?: string;
    content: string;
    toolCall?: string;
    media?: unknown[];
    blocks?: Array<{
        type: string;
    }>;
}
export declare function shouldPreserveStreamedBlocks(args: {
    quietPreempted: boolean;
    streamedBlocks: StreamedBlockForPersistence[];
}): boolean;
export declare function completedStreamedBlockIds(args: {
    quietPreempted: boolean;
    rateLimited: boolean;
    result: string | null | undefined;
    error: string | null | undefined;
    streamedBlocks: StreamedBlockForPersistence[];
}): Set<string>;
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