import type { PostHogCoreOptions, FeatureFlagValue, JsonType, PostHogFetchOptions, PostHogFetchResponse, PostHogFlagsAndPayloadsResponse } from '@posthog/core';
import { ContextData, ContextOptions } from './extensions/context/types';
import type { FeatureFlagEvaluations } from './feature-flag-evaluations';
import type { FlagDefinitionCacheProvider } from './extensions/feature-flags/cache';
export type IdentifyMessage = {
    distinctId: string;
    properties?: Record<string | number, any>;
    disableGeoip?: boolean;
};
export type SendFeatureFlagsOptions = {
    onlyEvaluateLocally?: boolean;
    personProperties?: Record<string, any>;
    groupProperties?: Record<string, Record<string, any>>;
    flagKeys?: string[];
};
export type EventMessage = Omit<IdentifyMessage, 'distinctId'> & {
    distinctId?: string;
    event: string;
    groups?: Record<string, string | number>;
    /**
     * Attach feature flag values evaluated via `posthog.evaluateFlags()` to this event.
     * Prefer this over `sendFeatureFlags` — it guarantees the event carries the exact
     * values the code branched on and avoids a hidden `/flags` request on every capture.
     */
    flags?: FeatureFlagEvaluations;
    /**
     * @deprecated Use the `flags` option with a `FeatureFlagEvaluations` object obtained
     * from `posthog.evaluateFlags()` instead. `sendFeatureFlags` fires a separate `/flags`
     * request on capture and may return different values than the ones the code branched on.
     */
    sendFeatureFlags?: boolean | SendFeatureFlagsOptions;
    timestamp?: Date;
    uuid?: string;
    /**
     * Internal flag set by captureException() to indicate this $exception
     * event originated from the proper exception capture path. Used to warn users who call
     * capture() with '$exception' directly.
     */
    _originatedFromCaptureException?: boolean;
};
export type GroupIdentifyMessage = {
    groupType: string;
    groupKey: string;
    properties?: Record<string | number, any>;
    distinctId?: string;
    disableGeoip?: boolean;
};
export type PropertyGroup = {
    type: 'AND' | 'OR';
    values: PropertyGroup[] | FlagProperty[];
};
export type FlagProperty = {
    key: string;
    type?: string;
    value: FlagPropertyValue;
    operator?: string;
    negation?: boolean;
    dependency_chain?: string[];
};
export type FlagPropertyValue = string | number | (string | number)[] | boolean;
/**
 * Options for overriding feature flags.
 *
 * Supports multiple formats:
 * - `false` - Clear all overrides
 * - `string[]` - Enable a list of flags (sets them to `true`)
 * - `Record<string, FeatureFlagValue>` - Set specific flag values/variants
 * - `FeatureFlagOverrideOptions` - Set both flag values and payloads
 */
export type OverrideFeatureFlagsOptions = false | string[] | Record<string, FeatureFlagValue> | FeatureFlagOverrideOptions;
export type BaseFlagEvaluationOptions = {
    groups?: Record<string, string>;
    personProperties?: Record<string, string>;
    groupProperties?: Record<string, Record<string, string>>;
    onlyEvaluateLocally?: boolean;
    disableGeoip?: boolean;
};
export type FlagEvaluationOptions = BaseFlagEvaluationOptions & {
    sendFeatureFlagEvents?: boolean;
};
export type AllFlagsOptions = BaseFlagEvaluationOptions & {
    flagKeys?: string[];
};
export type FeatureFlagOverrideOptions = {
    /**
     * Flag overrides. Can be:
     * - `false` to clear flag overrides
     * - `string[]` to enable a list of flags
     * - `Record<string, FeatureFlagValue>` to set specific values/variants
     */
    flags?: false | string[] | Record<string, FeatureFlagValue>;
    /**
     * Payload overrides for flags.
     * - `false` to clear payload overrides
     * - `Record<string, JsonType>` to set specific payloads
     */
    payloads?: false | Record<string, JsonType>;
};
export type FeatureFlagCondition = {
    properties: FlagProperty[];
    rollout_percentage?: number;
    variant?: string;
    aggregation_group_type_index?: number | null;
};
export type FeatureFlagBucketingIdentifier = 'distinct_id' | 'device_id' | '' | null;
export type BeforeSendFn = (event: EventMessage | null) => EventMessage | null;
export type PostHogOptions = Omit<PostHogCoreOptions, 'before_send'> & {
    persistence?: 'memory';
    personalApiKey?: string;
    privacyMode?: boolean;
    enableExceptionAutocapture?: boolean;
    featureFlagsPollingInterval?: number;
    maxCacheSize?: number;
    fetch?: (url: string, options: PostHogFetchOptions) => Promise<PostHogFetchResponse>;
    enableLocalEvaluation?: boolean;
    /**
     * Optional cache provider for feature flag definitions.
     *
     * Allows custom caching strategies (Redis, database, etc.) for flag definitions
     * in multi-worker environments. If not provided, defaults to in-memory cache.
     *
     * This enables distributed coordination where only one worker fetches flags while
     * others use cached data, reducing API calls and improving performance.
     *
     * @example
     * ```typescript
     * import type { FlagDefinitionCacheProvider } from 'posthog-node'
     *
     * class RedisCacheProvider implements FlagDefinitionCacheProvider {
     *   // ... implementation
     * }
     *
     * const client = new PostHog('api-key', {
     *   personalApiKey: 'personal-key',
     *   flagDefinitionCacheProvider: new RedisCacheProvider(redis)
     * })
     * ```
     */
    flagDefinitionCacheProvider?: FlagDefinitionCacheProvider;
    /**
     * Allows modification or dropping of events before they're sent to PostHog.
     * If an array is provided, the functions are run in order.
     * If a function returns null, the event will be dropped.
     */
    before_send?: BeforeSendFn | BeforeSendFn[];
    /**
     * Evaluation contexts for feature flags.
     * When set, only feature flags that have at least one matching evaluation tag
     * will be evaluated for this SDK instance. Feature flags with no evaluation tags
     * will always be evaluated.
     *
     * Examples: ['production', 'backend', 'api']
     *
     * @default undefined
     */
    evaluationContexts?: readonly string[];
    /**
     * Evaluation environments for feature flags.
     * @deprecated Use evaluationContexts instead. This property will be removed in a future version.
     */
    evaluationEnvironments?: readonly string[];
    /**
     * Additional user agent strings to block from being tracked.
     * These are combined with the default list of blocked user agents.
     *
     * @default []
     */
    custom_blocked_useragents?: string[];
    /**
     * PREVIEW - MAY CHANGE WITHOUT WARNING - DO NOT USE IN PRODUCTION
     * Enables collection of bot traffic as $bot_pageview events instead of dropping them.
     * When enabled, events with a $raw_user_agent property that matches the bot detection list
     * will have their $pageview event renamed to $bot_pageview.
     *
     * To use this feature, pass the user agent in event properties:
     * ```ts
     * client.capture({
     *   distinctId: 'user_123',
     *   event: '$pageview',
     *   properties: {
     *     $raw_user_agent: req.headers['user-agent']
     *   }
     * })
     * ```
     */
    __preview_capture_bot_pageviews?: boolean;
    /**
     * When enabled, all feature flag evaluations will use local evaluation only,
     * never falling back to server-side evaluation. This prevents unexpected server
     * requests and associated costs when using local evaluation.
     *
     * Flags that cannot be evaluated locally (e.g., those with experience continuity)
     * will return `undefined` instead of making a server request.
     *
     * @default false
     */
    strictLocalEvaluation?: boolean;
    /**
     * Controls whether `FeatureFlagEvaluations` filter helpers (`onlyAccessed()` and
     * `only()`) log warnings when their input is unexpected — for example, calling
     * `onlyAccessed()` before accessing any flags, or passing unknown keys to `only()`.
     *
     * @default true
     */
    featureFlagsLogWarnings?: boolean;
    /**
     * Provides the API to extend the lifetime of a serverless invocation until
     * background work (like flushing analytics events) completes after the response
     * is sent.
     *
     * @experimental Subject to change in a minor release.
     *
     * @example
     * // Vercel
     * import { waitUntil } from '@vercel/functions'
     * new PostHog('key', { waitUntil })
     */
    waitUntil?: (promise: Promise<unknown>) => void;
    /**
     * Debounce interval in milliseconds for the `waitUntil`-based flush.
     * After the last event is enqueued, the SDK waits this long before flushing.
     *
     * @experimental Subject to change in a minor release.
     * @default 50
     */
    waitUntilDebounceMs?: number;
    /**
     * Maximum time in milliseconds to debounce before forcing a flush.
     * Prevents starvation from rapid concurrent captures.
     *
     * @experimental Subject to change in a minor release.
     * @default 500
     */
    waitUntilMaxWaitMs?: number;
};
export type PostHogFeatureFlag = {
    id: number;
    name: string;
    key: string;
    bucketing_identifier?: FeatureFlagBucketingIdentifier;
    filters?: {
        aggregation_group_type_index?: number;
        groups?: FeatureFlagCondition[];
        multivariate?: {
            variants: {
                key: string;
                rollout_percentage: number;
            }[];
        };
        payloads?: Record<string, string>;
    };
    deleted: boolean;
    active: boolean;
    rollout_percentage: null | number;
    ensure_experience_continuity: boolean;
    experiment_set: number[];
};
/**
 * Error type constants for the $feature_flag_error property.
 *
 * These values are sent in analytics events to track flag evaluation failures.
 * They should not be changed without considering impact on existing dashboards
 * and queries that filter on these values.
 *
 * Error values:
 *   ERRORS_WHILE_COMPUTING: Server returned errorsWhileComputingFlags=true
 *   FLAG_MISSING: Requested flag not in API response
 *   QUOTA_LIMITED: Rate/quota limit exceeded
 *   UNKNOWN_ERROR: Unexpected exceptions
 */
export declare const FeatureFlagError: {
    readonly ERRORS_WHILE_COMPUTING: "errors_while_computing_flags";
    readonly FLAG_MISSING: "flag_missing";
    readonly QUOTA_LIMITED: "quota_limited";
    readonly UNKNOWN_ERROR: "unknown_error";
};
export type FeatureFlagErrorType = (typeof FeatureFlagError)[keyof typeof FeatureFlagError] | string;
/**
 * Result of evaluating a feature flag, including its value and payload.
 */
export type FeatureFlagResult = {
    key: string;
    enabled: boolean;
    variant: string | undefined;
    payload: JsonType | undefined;
};
export interface IPostHog {
    /**
     * @description Capture allows you to capture anything a user does within your system,
     * which you can later use in PostHog to find patterns in usage,
     * work out which features to improve or where people are giving up.
     * A capture call requires:
     * @param distinctId which uniquely identifies your user
     * @param event We recommend using [verb] [noun], like movie played or movie updated to easily identify what your events mean later on.
     * @param properties OPTIONAL | which can be a object with any information you'd like to add
     * @param groups OPTIONAL | object of what groups are related to this event, example: { company: 'id:5' }. Can be used to analyze companies instead of users.
     * @param flags OPTIONAL | A `FeatureFlagEvaluations` snapshot from `evaluateFlags()`. Attaches those exact flag values to the event with no extra network call.
     * @param sendFeatureFlags OPTIONAL | Deprecated — prefer `flags`. Fires a hidden `/flags` request on capture to enrich the event with flag values.
     */
    capture({ distinctId, event, properties, groups, flags, sendFeatureFlags }: EventMessage): void;
    /**
     * @description Capture an event immediately. Useful for edge environments where the usual queue-based sending is not preferable. Do not mix immediate and non-immediate calls.
     * @param distinctId which uniquely identifies your user
     * @param event We recommend using [verb] [noun], like movie played or movie updated to easily identify what your events mean later on.
     * @param properties OPTIONAL | which can be a object with any information you'd like to add
     * @param groups OPTIONAL | object of what groups are related to this event, example: { company: 'id:5' }. Can be used to analyze companies instead of users.
     * @param flags OPTIONAL | A `FeatureFlagEvaluations` snapshot from `evaluateFlags()`. Attaches those exact flag values to the event with no extra network call.
     * @param sendFeatureFlags OPTIONAL | Deprecated — prefer `flags`. Fires a hidden `/flags` request on capture to enrich the event with flag values.
     */
    captureImmediate({ distinctId, event, properties, groups, flags, sendFeatureFlags }: EventMessage): Promise<void>;
    /**
     * @description Identify lets you add metadata on your users so you can more easily identify who they are in PostHog,
     * and even do things like segment users by these properties.
     * An identify call requires:
     * @param distinctId which uniquely identifies your user
     * @param properties with a dict with any key: value pairs
     */
    identify({ distinctId, properties }: IdentifyMessage): void;
    /**
     * @description Identify lets you add metadata on your users so you can more easily identify who they are in PostHog.
     * Useful for edge environments where the usual queue-based sending is not preferable. Do not mix immediate and non-immediate calls.
     * @param distinctId which uniquely identifies your user
     * @param properties with a dict with any key: value pairs
     */
    identifyImmediate({ distinctId, properties }: IdentifyMessage): Promise<void>;
    /**
     * @description To marry up whatever a user does before they sign up or log in with what they do after you need to make an alias call.
     * This will allow you to answer questions like "Which marketing channels leads to users churning after a month?"
     * or "What do users do on our website before signing up?"
     * In a purely back-end implementation, this means whenever an anonymous user does something, you'll want to send a session ID with the capture call.
     * Then, when that users signs up, you want to do an alias call with the session ID and the newly created user ID.
     * The same concept applies for when a user logs in. If you're using PostHog in the front-end and back-end,
     *  doing the identify call in the frontend will be enough.:
     * @param distinctId the current unique id
     * @param alias the unique ID of the user before
     */
    alias(data: {
        distinctId: string;
        alias: string;
    }): void;
    /**
     * @description To marry up whatever a user does before they sign up or log in with what they do after you need to make an alias call.
     * Useful for edge environments where the usual queue-based sending is not preferable. Do not mix immediate and non-immediate calls.
     * @param distinctId the current unique id
     * @param alias the unique ID of the user before
     */
    aliasImmediate(data: {
        distinctId: string;
        alias: string;
    }): Promise<void>;
    /**
     * @description PostHog feature flags (https://posthog.com/docs/features/feature-flags)
     * allow you to safely deploy and roll back new features. Once you've created a feature flag in PostHog,
     * you can use this method to check if the flag is on for a given user, allowing you to create logic to turn
     * features on and off for different user groups or individual users.
     * @param key the unique key of your feature flag
     * @param distinctId the current unique id
     * @param options: dict with optional parameters below
     * @param groups optional - what groups are currently active (group analytics). Required if the flag depends on groups.
     * @param personProperties optional - what person properties are known. Used to compute flags locally, if personalApiKey is present.
     * @param groupProperties optional - what group properties are known. Used to compute flags locally, if personalApiKey is present.
     * @param onlyEvaluateLocally optional - whether to only evaluate the flag locally. Defaults to false.
     * @param sendFeatureFlagEvents optional - whether to send feature flag events. Used for Experiments. Defaults to true.
     *
     * @returns true if the flag is on, false if the flag is off, undefined if there was an error.
     *
     * @deprecated Use {@link IPostHog.evaluateFlags} and call `flags.isEnabled(key)` on the
     *   returned snapshot. Will be removed in the next major version.
     */
    isFeatureEnabled(key: string, distinctId: string, options?: {
        groups?: Record<string, string>;
        personProperties?: Record<string, string>;
        groupProperties?: Record<string, Record<string, string>>;
        onlyEvaluateLocally?: boolean;
        sendFeatureFlagEvents?: boolean;
    }): Promise<boolean | undefined>;
    /**
     * @description PostHog feature flags (https://posthog.com/docs/features/feature-flags)
     * allow you to safely deploy and roll back new features. Once you've created a feature flag in PostHog,
     * you can use this method to check if the flag is on for a given user, allowing you to create logic to turn
     * features on and off for different user groups or individual users.
     * @param key the unique key of your feature flag
     * @param distinctId the current unique id
     * @param options: dict with optional parameters below
     * @param groups optional - what groups are currently active (group analytics). Required if the flag depends on groups.
     * @param personProperties optional - what person properties are known. Used to compute flags locally, if personalApiKey is present.
     * @param groupProperties optional - what group properties are known. Used to compute flags locally, if personalApiKey is present.
     * @param onlyEvaluateLocally optional - whether to only evaluate the flag locally. Defaults to false.
     * @param sendFeatureFlagEvents optional - whether to send feature flag events. Used for Experiments. Defaults to true.
     *
     * @returns true or string(for multivariates) if the flag is on, false if the flag is off, undefined if there was an error.
     *
     * @deprecated Use {@link IPostHog.evaluateFlags} and call `flags.getFlag(key)` on the
     *   returned snapshot. Will be removed in the next major version.
     */
    getFeatureFlag(key: string, distinctId: string, options?: {
        groups?: Record<string, string>;
        personProperties?: Record<string, string>;
        groupProperties?: Record<string, Record<string, string>>;
        onlyEvaluateLocally?: boolean;
        sendFeatureFlagEvents?: boolean;
    }): Promise<FeatureFlagValue | undefined>;
    /**
     * @description Retrieves payload associated with the specified flag and matched value that is passed in.
     *
     * IMPORTANT: The `matchValue` parameter should be the value you previously obtained from `getFeatureFlag()`.
     * If matchValue isn't passed (or is undefined), this method will automatically call `getFeatureFlag()`
     * internally to fetch the flag value, which could result in a network call to the PostHog server if this flag can
     * not be evaluated locally. This means that omitting `matchValue` will potentially:
     * - Bypass local evaluation
     * - Count as an additional flag evaluation against your quota
     * - Impact performance due to the extra network request
     *
     * Example usage:
     * ```js
     * const flagValue = await client.getFeatureFlag('my-flag', distinctId);
     * const payload = await client.getFeatureFlagPayload('my-flag', distinctId, flagValue);
     * ```
     *
     * @param key the unique key of your feature flag
     * @param distinctId the current unique id
     * @param matchValue The flag value previously obtained from calling `getFeatureFlag()`. Can be a string or boolean.
     *                   To avoid extra network calls, pass this parameter when you can.
     * @param options: dict with optional parameters below
     * @param onlyEvaluateLocally optional - whether to only evaluate the flag locally. Defaults to false.
     *
     * @returns payload of a json type object
     *
     * @deprecated Use {@link IPostHog.evaluateFlags} and call `flags.getFlagPayload(key)` on
     *   the returned snapshot. Will be removed in the next major version.
     */
    getFeatureFlagPayload(key: string, distinctId: string, matchValue?: FeatureFlagValue, options?: {
        onlyEvaluateLocally?: boolean;
    }): Promise<JsonType | undefined>;
    /**
     * @description Get all feature flag values using distinctId from withContext().
     */
    getAllFlags(options?: AllFlagsOptions): Promise<Record<string, FeatureFlagValue>>;
    /**
     * @description Get all feature flag values for a specific user.
     *
     * @param distinctId - The user's distinct ID
     * @param options - Optional configuration for flag evaluation
     * @returns Promise that resolves to a record of flag keys and their values
     */
    getAllFlags(distinctId: string, options?: AllFlagsOptions): Promise<Record<string, FeatureFlagValue>>;
    /**
     * @description Get all feature flag values and payloads using distinctId from withContext().
     */
    getAllFlagsAndPayloads(options?: AllFlagsOptions): Promise<PostHogFlagsAndPayloadsResponse>;
    /**
     * @description Get all feature flag values and payloads for a specific user.
     *
     * @param distinctId - The user's distinct ID
     * @param options - Optional configuration for flag evaluation
     * @returns Promise that resolves to flags and payloads
     */
    getAllFlagsAndPayloads(distinctId: string, options?: AllFlagsOptions): Promise<PostHogFlagsAndPayloadsResponse>;
    /**
     * @description Get a feature flag result using distinctId from withContext().
     */
    getFeatureFlagResult(key: string, options?: FlagEvaluationOptions): Promise<FeatureFlagResult | undefined>;
    /**
     * @description Get the result of evaluating a feature flag, including its value and payload.
     * This is more efficient than calling getFeatureFlag and getFeatureFlagPayload separately when you need both.
     *
     * @example
     * ```ts
     * const result = await client.getFeatureFlagResult('my-flag', 'user_123')
     * if (result) {
     *   console.log('Flag enabled:', result.enabled)
     *   console.log('Variant:', result.variant)
     *   console.log('Payload:', result.payload)
     * }
     * ```
     *
     * @param key - The feature flag key
     * @param distinctId - The user's distinct ID
     * @param options - Optional configuration for flag evaluation
     * @returns Promise that resolves to the flag result or undefined
     */
    getFeatureFlagResult(key: string, distinctId: string, options?: FlagEvaluationOptions): Promise<FeatureFlagResult | undefined>;
    /**
     * @description Evaluate all feature flags for a user in a single call and return a
     * {@link FeatureFlagEvaluations} snapshot. Branch on `.isEnabled()` / `.getFlag()`,
     * then pass the same snapshot to `capture()` via the `flags` option so events carry
     * the exact flag values the code branched on.
     *
     * Prefer this over calling `isFeatureEnabled()` / `getFeatureFlag()` repeatedly and
     * over `capture({ sendFeatureFlags: true })` — it avoids multiple `/flags` requests
     * per incoming request.
     *
     * @example
     * ```ts
     * const flags = await posthog.evaluateFlags('user_123', { personProperties: { plan: 'enterprise' } })
     * if (flags.isEnabled('new-dashboard')) {
     *   renderNewDashboard()
     * }
     * posthog.capture({ distinctId: 'user_123', event: 'page_viewed', flags })
     * ```
     *
     * @param options - Optional configuration for flag evaluation. Pass `flagKeys` to scope the underlying `/flags` request to a subset of flags.
     */
    evaluateFlags(options?: AllFlagsOptions): Promise<FeatureFlagEvaluations>;
    /**
     * @description Evaluate all feature flags for a specific user.
     *
     * @param distinctId - The user's distinct ID
     * @param options - Optional configuration for flag evaluation. Pass `flagKeys` to scope the underlying `/flags` request to a subset of flags.
     */
    evaluateFlags(distinctId: string, options?: AllFlagsOptions): Promise<FeatureFlagEvaluations>;
    /**
     * @description Sets a groups properties, which allows asking questions like "Who are the most active companies"
     * using my product in PostHog.
     *
     * @param groupType Type of group (ex: 'company'). Limited to 5 per project
     * @param groupKey Unique identifier for that type of group (ex: 'id:5')
     * @param properties OPTIONAL | which can be a object with any information you'd like to add
     */
    groupIdentify({ groupType, groupKey, properties }: GroupIdentifyMessage): void;
    /**
     * @description Force an immediate reload of the polled feature flags. Please note that they are
     * already polled automatically at a regular interval.
     */
    reloadFeatureFlags(): Promise<void>;
    /**
     * @description Override feature flags locally. Useful for testing and local development.
     * Overridden flags take precedence over both local evaluation and remote evaluation.
     *
     * @example
     * ```ts
     * // Clear all overrides
     * posthog.overrideFeatureFlags(false)
     *
     * // Enable a list of flags (sets them to true)
     * posthog.overrideFeatureFlags(['flag-a', 'flag-b'])
     *
     * // Set specific flag values/variants
     * posthog.overrideFeatureFlags({ 'my-flag': 'variant-a', 'other-flag': true })
     *
     * // Set both flags and payloads
     * posthog.overrideFeatureFlags({
     *   flags: { 'my-flag': 'variant-a' },
     *   payloads: { 'my-flag': { discount: 20 } }
     * })
     * ```
     *
     * @param overrides - Flag overrides configuration
     */
    overrideFeatureFlags(overrides: OverrideFeatureFlagsOptions): void;
    /**
     * @description Run a function with specific context that will be applied to all events captured within that context.
     * @param data Context data to apply (sessionId, distinctId, properties, enableExceptionAutocapture)
     * @param fn Function to run with the context
     * @param options Context options (fresh)
     * @returns The return value of the function
     */
    withContext<T>(data: Partial<ContextData>, fn: () => T, options?: ContextOptions): T;
    /**
     * @description Set context without a callback wrapper. Must be called in the same
     * async scope that makes PostHog calls. Prefer `withContext()` when you can wrap
     * code in a callback.
     * @param data Context data to apply (distinctId, sessionId, properties)
     * @param options Context options (fresh)
     */
    enterContext(data: Partial<ContextData>, options?: ContextOptions): void;
    /**
     * @description Get the current context data.
     * @returns The current context data, or undefined if no context is set
     */
    getContext(): ContextData | undefined;
    /**
     * @description Flushes the events still in the queue and clears the feature flags poller to allow for
     * a clean shutdown.
     *
     * @param shutdownTimeoutMs The shutdown timeout, in milliseconds. Defaults to 30000 (30s).
     */
    shutdown(shutdownTimeoutMs?: number): void;
    /**
     * @description Waits for local evaluation to be ready, with an optional timeout.
     * @param timeoutMs - Maximum time to wait in milliseconds. Defaults to 30 seconds.
     * @returns A promise that resolves to true if local evaluation is ready, false if the timeout was reached.
     */
    waitForLocalEvaluationReady(timeoutMs?: number): Promise<boolean>;
    /**
     * @description Returns true if local evaluation is ready, false if it's not.
     * @returns true if local evaluation is ready, false if it's not.
     */
    isLocalEvaluationReady(): boolean;
}
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