import DynamicConfig from './DynamicConfig';
import FeatureGate from './FeatureGate';
import Layer from './Layer';
import { StatsigUser } from './StatsigUser';
export declare const INIT_TIMEOUT_DEFAULT_MS = 3000;
export type StatsigEnvironment = {
    tier?: 'production' | 'staging' | 'development' | string;
    [key: string]: string | undefined;
};
export type InitCompletionCallback = (initDurationMs: number, success: boolean, message: string | null) => void;
export type UpdateUserCompletionCallback = (durationMs: number, success: boolean, message: string | null) => void;
export type GateEvaluationCallback = (key: string, value: boolean, details: {
    withExposureLoggingDisabled: boolean;
}) => void;
export type EvaluationCallbackParams = {
    type: 'gate';
    gate: FeatureGate;
} | {
    type: 'config' | 'experiment';
    config: DynamicConfig;
} | {
    type: 'layer';
    layer: Layer;
};
export type EvaluationCallback = (args: EvaluationCallbackParams) => void;
export interface UserPersistentStorageInterface {
    load(key: string): string;
    save(key: string, data: string): void;
    userIDType: string | undefined;
}
export type StatsigOptions = {
    api?: string;
    disableAllLogging?: boolean;
    disableAutoMetricsLogging?: boolean;
    disableCurrentPageLogging?: boolean;
    disableDiagnosticsLogging?: boolean;
    disableErrorLogging?: boolean;
    disableLocalOverrides?: boolean;
    disableLocalStorage?: boolean;
    disableNetworkKeepalive?: boolean;
    initRequestRetries?: number;
    environment?: StatsigEnvironment;
    eventLoggingApi?: string;
    fetchMode?: FetchMode;
    gateEvaluationCallback?: GateEvaluationCallback;
    ignoreWindowUndefined?: boolean;
    initCompletionCallback?: InitCompletionCallback | null;
    initializeValues?: Record<string, unknown> | null;
    initTimeoutMs?: number;
    localMode?: boolean;
    loggingBufferMaxSize?: number;
    loggingIntervalMillis?: number;
    logLevel?: LogLevel | null;
    logger?: LoggerInterface;
    overrideStableID?: string;
    prefetchUsers?: StatsigUser[];
    updateUserCompletionCallback?: UpdateUserCompletionCallback | null;
    userPersistentStorage?: UserPersistentStorageInterface;
    disableHashing?: boolean;
    evaluationCallback?: EvaluationCallback;
};
export interface LoggerInterface {
    error(message?: any, ...optionalParams: any[]): void;
    info(message?: any, ...optionalParams: any[]): void;
    debug?(message?: any, ...optionalParams: any[]): void;
    warn(message?: any, ...optionalParams: any[]): void;
}
export declare enum LogLevel {
    NONE = "NONE",
    INFO = "INFO",
    DEBUG = "DEBUG",
    WARN = "WARN",
    ERROR = "ERROR"
}
export type FetchMode = 'cache-or-network' | 'network-only';
export default class StatsigSDKOptions {
    private api;
    private disableAllLogging;
    private disableAutoMetricsLogging;
    private disableCurrentPageLogging;
    private disableDiagnosticsLogging;
    private disableErrorLogging;
    private disableLocalOverrides;
    private disableLocalStorage;
    private disableNetworkKeepalive;
    private initRequestRetries;
    private environment;
    private eventLoggingApi;
    private fetchMode;
    private gateEvaluationCallback;
    private ignoreWindowUndefined;
    private initCompletionCallback;
    private initializeValues;
    private initTimeoutMs;
    private localMode;
    private loggingBufferMaxSize;
    private loggingIntervalMillis;
    private logLevel;
    private logger;
    private overrideStableID;
    private prefetchUsers;
    private updateCompletionCallback;
    private userPersistentStorage;
    private disableHashing;
    private evaluationCallback;
    private loggingCopy;
    constructor(options?: StatsigOptions | null);
    setLoggingCopy(options: StatsigOptions | null): void;
    getLoggingCopy(): Record<string, unknown> | undefined;
    getOutputLogger(): LoggerInterface;
    getApi(): string;
    getEnvironment(): StatsigEnvironment | null;
    getDisableCurrentPageLogging(): boolean;
    getLoggingIntervalMillis(): number;
    getLoggingBufferMaxSize(): number;
    getDisableNetworkKeepalive(): boolean;
    getOverrideStableID(): string | null;
    getLocalModeEnabled(): boolean;
    getInitTimeoutMs(): number;
    getDisableErrorLogging(): boolean;
    getDisableAutoMetricsLogging(): boolean;
    getInitializeValues(): Record<string, unknown> | null;
    getEventLoggingApi(): string;
    getPrefetchUsers(): StatsigUser[];
    getDisableLocalStorage(): boolean;
    getInitCompletionCallback(): InitCompletionCallback | null;
    getUpdateUserCompletionCallback(): UpdateUserCompletionCallback | null;
    getDisableDiagnosticsLogging(): boolean;
    getLogLevel(): LogLevel;
    getIgnoreWindowUndefined(): boolean;
    getFetchMode(): FetchMode;
    getDisableLocalOverrides(): boolean;
    getGateEvaluationCallback(): GateEvaluationCallback | null;
    getUserPersistentStorage(): UserPersistentStorageInterface | null;
    getDisableHashing(): boolean;
    getInitRequestRetries(): number;
    isAllLoggingDisabled(): boolean;
    reenableAllLogging(): void;
    getEvaluationCallback(): EvaluationCallback | null;
    private normalizeNumberInput;
}