export interface CcusageSessionUsage {
    sessionId: string;
    cwd: string;
    startedAt: string;
    lastActivity: string;
    inputTokens: number;
    cachedInputTokens: number;
    outputTokens: number;
    reasoningOutputTokens: number;
    totalTokens: number;
    models: string[];
    isFallbackModel: boolean;
    sourceFile: string;
}
export declare function loadCcusageCompatibleSessionUsage(targetRoot: string): Promise<CcusageSessionUsage[]>;
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