import { ServerZone } from '@amplitude/analytics-core';
export declare const DEFAULT_EVENT_PROPERTY_PREFIX = "[Amplitude]";
export declare const DEFAULT_SESSION_REPLAY_PROPERTY: string;
export declare const DEFAULT_SESSION_START_EVENT = "session_start";
export declare const DEFAULT_SESSION_END_EVENT = "session_end";
export declare const DEFAULT_SAMPLE_RATE = 0;
export declare const DEFAULT_SERVER_ZONE = ServerZone.US;
export declare const DEFAULT_PERFORMANCE_CONFIG: {
    enabled: boolean;
};
export declare const DEFAULT_URL_CHANGE_POLLING_INTERVAL = 1000;
export declare const SESSION_REPLAY_DEBUG_PROPERTY: string;
export declare const BLOCK_CLASS = "amp-block";
export declare const MASK_TEXT_CLASS = "amp-mask";
export declare const UNMASK_TEXT_CLASS = "amp-unmask";
export declare const SESSION_REPLAY_SERVER_URL = "https://api-sr.amplitude.com/sessions/v2/track";
export declare const SESSION_REPLAY_EU_URL = "https://api-sr.eu.amplitude.com/sessions/v2/track";
export declare const SESSION_REPLAY_STAGING_URL = "https://api-sr.stag2.amplitude.com/sessions/v2/track";
export declare const STORAGE_PREFIX: string;
export declare const MAX_EVENT_LIST_SIZE = 700000;
export declare const MAX_SINGLE_EVENT_SIZE: number;
export declare const WAF_PAYLOAD_TOO_LARGE_PATTERN: RegExp;
export declare const INTERACTION_MIN_INTERVAL = 30000;
export declare const INTERACTION_MAX_INTERVAL = 60000;
export declare const MIN_INTERVAL = 500;
export declare const MAX_INTERVAL: number;
export declare const MAX_IDB_STORAGE_LENGTH: number;
export declare const KB_SIZE = 1024;
export declare const MAX_URL_LENGTH = 1000;
export declare const RETRY_TIMEOUT_MS = 1000;
export declare const MAX_KEEPALIVE_BYTES: number;
export declare const EVENT_SKIPPED_HEADER = "X-Session-Replay-Event-Skipped";
export declare const EVENT_SKIP_CODE_THROTTLED = "429";
export declare const EVENT_SKIP_CODE_INVALID_RANGE = "4004";
export declare const EVENT_SKIP_CODE_CAPTURE_DISABLED = "4005";
export declare const THROTTLED_FLUSH_PAUSE_MS = 60000;
export declare const MERGE_AFTER_THROTTLE_SOFT_CAP: number;
export declare const CROSS_ORIGIN_IFRAME_MESSAGE_TYPE = "amplitude-sr-iframe";
export declare enum CustomRRwebEvent {
    GET_SR_PROPS = "get-sr-props",
    DEBUG_INFO = "debug-info",
    FETCH_REQUEST = "fetch-request",
    METADATA = "metadata",
    TARGETING_DECISION = "targeting-decision",
    /**
     * Emitted once per session, on the first send that passes the min_session_duration_ms
     * gate. Captures how many sends were suppressed before passing and the elapsed time
     * spent below the threshold. Lets backend ingestion diff intended replay count vs
     * actual ingestion so on-call can spot start-time-tracking regressions.
     *
     * Sessions that bounce before crossing the threshold never emit this event by design
     * (the whole payload is suppressed); their absence is the signal.
     */
    REPLAY_GATE_DECISION = "replay-gate-decision"
}
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