import { type BaseEvent } from '../ag-ui-core/index.js';
import { type ConversationProtocolVersion } from './version.js';
export type ConversationRunAck = {
    protocolVersion: ConversationProtocolVersion;
    runId: string;
    threadId: string;
    resumeFrom?: string;
};
export type ConversationTransportError = {
    code: string;
    message: string;
    retriable?: boolean;
};
export type ConversationSseEvent = {
    event: 'ag-ui';
    id?: string;
    data: BaseEvent;
} | {
    event: 'ack';
    id?: string;
    data: ConversationRunAck;
} | {
    event: 'heartbeat';
    id?: string;
    data: {
        ts: number;
    };
} | {
    event: 'transport-error';
    id?: string;
    data: ConversationTransportError;
};
export declare function createConversationRunAck(runId: string, threadId: string, options?: {
    id?: string;
    resumeFrom?: string;
}): ConversationSseEvent;
export declare function createConversationAGUIEvent(data: BaseEvent, id?: string): ConversationSseEvent;
export declare function parseConversationAGUIEvent(value: unknown): BaseEvent;
export declare function createConversationHeartbeat(ts?: number, id?: string): ConversationSseEvent;
export declare function createConversationTransportError(data: ConversationTransportError, id?: string): ConversationSseEvent;
export declare function parseConversationSseChunk(input: string): {
    events: ConversationSseEvent[];
    remainder: string;
};
export declare function encodeConversationSseEvent(event: ConversationSseEvent): string;