export interface SamplingConfig {
    samplingRate: number;
    adminTriggerOnly: boolean;
    adminToken?: string;
}
export declare const DEFAULT_SAMPLING_CONFIG: SamplingConfig;
export interface SamplingDecision {
    shouldSample: boolean;
    reason: string;
    randomValue?: number;
}
export declare class SamplingService {
    private config;
    private sampleCount;
    private skipCount;
    constructor();
    configure(config: Partial<SamplingConfig>): void;
    getConfig(): SamplingConfig;
    shouldSample(adminToken?: string): SamplingDecision;
    getStats(): {
        sampleCount: number;
        skipCount: number;
        totalCount: number;
        actualRate: number;
    };
    resetStats(): void;
    validateSamplingRate(rate: number): {
        valid: boolean;
        clampedValue: number;
        message?: string;
    };
    isAdminTriggerMode(): boolean;
    enableAdminTriggerMode(adminToken?: string): void;
    disableAdminTriggerMode(): void;
    setSamplingRate(rate: number): void;
    getSamplingRate(): number;
    getConfigDescription(): string;
}