import type { AgentRuntime, AgentSessionSnapshot, SessionConfig, SessionState } from './types.js';
import type { TurnState } from './turn-protocol.js';
export interface BuildAgentSessionSnapshotInput {
    conversationId: string;
    agentId: string;
    runtime?: AgentRuntime | null;
    sessionConfig?: SessionConfig | null;
    sessionState?: SessionState | null;
    turnState?: TurnState | null;
    lastHeartbeatAt?: number | null;
    updatedAt?: number | null;
}
export declare function buildAgentSessionSnapshot(input: BuildAgentSessionSnapshotInput): AgentSessionSnapshot;