/**
 * ConnectionPayload content type for ConvosConnections (device → agent
 * sensor events).
 *
 * Mirrors the iOS `ConnectionPayloadCodec` (PR #767):
 * - Content type: convos.org/connection_payload:1.0
 * - Payload: JSON-encoded `ConnectionPayload`
 * - Fallback: `payload.summary`
 * - shouldPush: false (silent — agent consumes via dedicated handler)
 *
 * The CLI does not model each per-source payload body type. The body is
 * carried as `{ type, data: unknown }` so we round-trip every known
 * source unchanged plus any future types iOS may ship before the CLI
 * gains explicit support.
 */
import type { ContentTypeId, EncodedContent } from "@xmtp/node-bindings";
import type { ContentCodec } from "@xmtp/content-type-primitives";
import type { DecodedMessage } from "@xmtp/node-sdk";
import type { ConnectionKind } from "./connectionTypes.js";
export declare const ContentTypeConnectionPayload: ContentTypeId;
export declare const CONNECTION_PAYLOAD_CURRENT_SCHEMA_VERSION = 1;
/**
 * Source-specific payload body. `type` is one of the known
 * `ConnectionKind` raw values OR any other string for forward
 * compatibility with newer iOS builds.
 */
export interface ConnectionPayloadBody {
    type: ConnectionKind | (string & {});
    data: unknown;
}
export interface ConnectionPayload {
    /** Uppercase UUID (Swift's default UUID encoding). */
    id: string;
    schemaVersion: number;
    source: ConnectionKind;
    /** Swift `Date` wire value: seconds since 2001-01-01 reference date. */
    capturedAt: number;
    body: ConnectionPayloadBody;
}
export declare class ConnectionPayloadCodec implements ContentCodec<ConnectionPayload> {
    get contentType(): ContentTypeId;
    encode(content: ConnectionPayload): EncodedContent;
    decode(content: EncodedContent): ConnectionPayload;
    fallback(content: ConnectionPayload): string | undefined;
    shouldPush(_content: ConnectionPayload): boolean;
}
/**
 * Best-effort human-readable summary, mirroring the per-body `summary`
 * accessor on iOS. Falls back to the body's discriminator when the
 * payload doesn't carry an explicit summary string.
 */
export declare function summarizeConnectionPayload(payload: ConnectionPayload): string;
export declare function isConnectionPayloadMessage(message: DecodedMessage): boolean;
/**
 * Extract a `ConnectionPayload` from a DecodedMessage whether the codec
 * was registered at client creation or not.
 */
export declare function getConnectionPayloadContent(message: DecodedMessage): ConnectionPayload | undefined;