/**
 * Canary Testing — deploy tests to production with gradual rollout.
 */
export interface CanaryMetric {
    name: string;
    min?: number;
    max?: number;
}
export interface CanaryConfig {
    percentage: number;
    metrics: CanaryMetric[];
    promote_after: number;
    rollback_on?: string;
}
export interface CanaryRunResult {
    iteration: number;
    passed: boolean;
    metrics: Record<string, number>;
}
export interface CanaryState {
    config: CanaryConfig;
    runs: CanaryRunResult[];
    status: 'canary' | 'promoted' | 'rolled_back';
    totalRuns: number;
    passedRuns: number;
}
export declare function parseCanaryConfig(raw: Record<string, any>): CanaryConfig;
export declare function loadCanaryConfig(filePath: string): CanaryConfig;
export declare function shouldRunCanary(percentage: number): boolean;
export declare function evaluateCanaryMetrics(config: CanaryConfig, actual: Record<string, number>): {
    passed: boolean;
    violations: string[];
};
export declare function evaluateRollback(condition: string | undefined, metrics: Record<string, number>): boolean;
export declare function createCanaryState(config: CanaryConfig): CanaryState;
export declare function recordCanaryRun(state: CanaryState, metrics: Record<string, number>): CanaryState;
export declare function formatCanaryState(state: CanaryState): string;
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