/**
 * ConnectionEvent content type — device/user → agent notification that a
 * provider grant changed for this conversation.
 *
 * Mirrors the iOS `ConnectionEventCodec` (PR #771):
 * - Content type: convos.org/connection_event:1.0
 * - Payload: JSON-encoded `ConnectionEvent`
 * - Fallback: none
 * - shouldPush: false
 */
import type { ContentTypeId, EncodedContent } from "@xmtp/node-bindings";
import type { ContentCodec } from "@xmtp/content-type-primitives";
import type { DecodedMessage } from "@xmtp/node-sdk";
export declare const ContentTypeConnectionEvent: ContentTypeId;
export declare const CONNECTION_EVENT_SUPPORTED_VERSION = 1;
export type ConnectionEventAction = "granted" | "revoked";
export interface ConnectionEvent {
    version: number;
    providerId: string;
    action: ConnectionEventAction;
    /**
     * Optional — when present, identifies which agent inbox this grant or
     * revoke applies to. Lets an agent in a multi-agent group filter to only
     * the entries meant for it. Absent on older grants for backward compat.
     * Mirrors convos-ios#812.
     */
    grantedToInboxId?: string;
}
export declare class ConnectionEventCodec implements ContentCodec<ConnectionEvent> {
    get contentType(): ContentTypeId;
    encode(content: ConnectionEvent): EncodedContent;
    decode(content: EncodedContent): ConnectionEvent;
    fallback(_content: ConnectionEvent): string | undefined;
    shouldPush(_content: ConnectionEvent): boolean;
}
export declare function isConnectionEventMessage(message: DecodedMessage): boolean;
export declare function getConnectionEventContent(message: DecodedMessage): ConnectionEvent | undefined;