import type { ABTestConfig, ABTestDataPoint, ABTestResult } from "../types.js";
interface StoredABTest {
    testId: string;
    ruleId: string;
    config: ABTestConfig;
    dataPoints: ABTestDataPoint[];
    createdAt: string;
}
/** Result of starting an A/B test. */
export interface StartABTestResult {
    testId: string;
    status: "started" | "already_running" | "invalid_config";
    startTime: string;
    endTime?: string;
    message: string;
}
export declare function loadTests(projectDir: string): StoredABTest[];
export declare function saveTests(projectDir: string, tests: StoredABTest[]): void;
export declare function startABTest(projectDir: string, config: ABTestConfig): StartABTestResult;
export declare function collectDataPoint(projectDir: string, testId: string, dataPoint: ABTestDataPoint): {
    collected: boolean;
    message: string;
};
export declare function analyzeTest(projectDir: string, testId?: string): ABTestResult[];
export {};
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