export declare function getReferrer(): string;
export interface PostMessageData {
    metadata?: Record<string, any>;
    mx: boolean;
    type: string;
    [key: string]: any;
}
export declare function postMessageToParent(message: PostMessageData): boolean;
export declare function postInsightOnTransaction(beatGuid: string): boolean;
export declare function postClientConfiguredCta(template: string): boolean;
export declare const BEAT_CTA_EVENT = "beat/cta";
export declare const BEAT_OPERATION_1 = "op_1";
export declare const BEAT_OPERATION_2 = "op_2";
export declare const BEAT_OPERATION_3 = "op_3";
/** Minimal beat shape needed to build a CTA post message. */
export interface BeatCtaSource {
    guid: string;
    template: string;
    payload?: {
        action_string?: string;
    } | null;
}
export interface BeatCtaPayload {
    action: string;
    beat_guid: string;
    beat_template: string;
    action_string?: string;
    [key: string]: unknown;
}
/**
 * Build the `[event, payload]` tuple for a beat CTA post message.
 * Mirrors Pulse's `getBaseCtaPostMessage`.
 */
export declare function getBaseCtaPostMessage(beat: BeatCtaSource, op?: string): [string, BeatCtaPayload];
/**
 * Send a beat post message to the parent window. Only posts when embedded in an
 * iframe (`window.self !== window.top`), mirroring Pulse's `sendPostMessage`
 * (default scheme `mx/pulse`). Returns false when not embedded or no target.
 */
export declare function sendBeatPostMessage(event: string, data: Record<string, unknown>, scheme?: string): boolean;
/**
 * Navigate a mobile webview to a custom-scheme URL instead of posting a message.
 * Mirrors Pulse's `setWebviewURL` (default scheme `mx`).
 */
export declare function setWebviewURL(event: string, data?: Record<string, unknown>, scheme?: string): void;
export interface SendBeatCtaOptions {
    /** True when running inside a native mobile webview. */
    isMobileWebview?: boolean;
    /** Custom URL scheme for webview navigation (from client config). */
    webviewScheme?: string;
    /** Current user guid, added to the metadata like the Pulse epic does. */
    userGuid?: string;
    /** Operation string sent with the CTA (defaults to op_1). */
    op?: string;
}
/**
 * Send a beat CTA to the host: builds the payload, adds `user_guid`, then either
 * posts a message to the host or navigates the webview. Mirrors the behaviour of
 * Pulse's `postMessages` epic (minus the RxJS buffering).
 */
export declare function sendBeatCta(beat: BeatCtaSource, { isMobileWebview, webviewScheme, userGuid, op }?: SendBeatCtaOptions): void;