import ConfigEvaluation from './ConfigEvaluation';
import { Marker } from './Diagnostics';
import ErrorBoundary from './ErrorBoundary';
import LogEvent, { SecondaryExposure } from './LogEvent';
import { ExplicitStatsigOptions, StatsigOptions } from './StatsigOptions';
import { StatsigUser } from './StatsigUser';
import { AbortSignalLike } from './utils/AbortSignalLike';
import StatsigFetcher from './utils/StatsigFetcher';
export declare class SamplingDecision {
    shouldLog: boolean;
    samplingRate: number | undefined;
    shadowLogged: string | undefined;
    samplingMode: string | undefined;
    constructor(shouldLog: boolean, samplingRate?: number, shadowLogged?: string, samplingMode?: string);
    static createForceLog(samplingMode: string | null): SamplingDecision;
}
export default class LogEventProcessor {
    private explicitOptions;
    private optionsLoggiingCopy;
    private fetcher;
    private queue;
    private flushTimer;
    private loggedErrors;
    private deduper;
    private deduperTimer;
    private sessionID;
    private errorBoundary;
    private _sampling_key_set;
    private samplingKeyTimer;
    constructor(fetcher: StatsigFetcher, errorBoundry: ErrorBoundary, explicitOptions: ExplicitStatsigOptions, optionsLoggiingCopy: StatsigOptions, sessionID: string);
    log(event: LogEvent, errorKey?: string | null): void;
    flush(fireAndForget?: boolean, abortSignal?: AbortSignalLike): Promise<void>;
    shutdown(timeout?: number): Promise<void>;
    logStatsigInternal(user: StatsigUser | null, eventName: string, metadata: Record<string, unknown> | null, secondaryExposures?: SecondaryExposure[] | null, value?: string | number | null, samplingDecision?: SamplingDecision): void;
    logGateExposure(user: StatsigUser, gateName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): void;
    getGateExposureMetadata(gateName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): Record<string, unknown>;
    getGateExposure(user: StatsigUser, gateName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): LogEvent;
    logConfigExposure(user: StatsigUser, configName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): void;
    getConfigExposure(user: StatsigUser, configName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): LogEvent;
    getConfigExposureMetadata(configName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): Record<string, unknown>;
    logLayerExposure(user: StatsigUser, layerName: string, parameterName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): void;
    getLayerExposureMetadata(layerName: string, parameterName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): Record<string, unknown>;
    getLayerExposure(user: StatsigUser, layerName: string, parameterName: string, evaluation: ConfigEvaluation, isManualExposure: boolean): LogEvent;
    logConfigDefaultValueFallback(user: StatsigUser, message: string, metadata: Record<string, unknown>): void;
    private maybeAddManualExposureFlagToMetadata;
    private safeAddEvaulationDetailsToEvent;
    private isUniqueExposure;
    logDiagnosticsEvent(diagnostics: {
        context: string;
        markers: Marker[];
    }, user?: StatsigUser | null): void;
    private addDiagnosticsMarkers;
    private determineSamplingDecision;
    private get_sdk_environment_tier;
}