import { CanonicalMessage, ToolResultPart, Usage } from "@empiricalrun/shared-types/chat-agent";
import { UniqueFrameInfos } from "@empiricalrun/shared-types/test-gen";
import { VideoAnalysisToolResponse } from "@empiricalrun/shared-types/tool-results";
export declare function formatSecondsToTimestamp(seconds: number | undefined): string;
export declare function formatTimestampToSeconds(timestamp: string): number;
export declare const getR2BaseUrlByHash: (videoUrlHash: string) => string;
export declare function createInterleavedResults(parsedAnalysis: VideoAnalysisToolResponse[], uniqueFrameInfos: UniqueFrameInfos[]): ToolResultPart[];
export interface VideoValidationResult {
    isValid: boolean;
    error?: string;
}
export declare function validateVideoAccess(videoUrl: string): Promise<VideoValidationResult>;
export declare function aggregateUsageFromMessages(messages: CanonicalMessage[]): Usage;
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