import { type LanguageModel } from 'ai';
import { type AgentConfig, type ExtractionConfig, type FlowAgentConfig, type ExtractionSnapshot, type Session, type FlowManagerState, type RunContext, type HarnessConfig } from '../types/index.js';
export interface ExtractionEngineOptions {
    defaultModel?: HarnessConfig['defaultModel'];
    telemetry?: HarnessConfig['telemetry'];
}
export declare class ExtractionEngine {
    private options;
    constructor(options: ExtractionEngineOptions);
    getExtractionConfig(agent: AgentConfig, session: Session, helpers: {
        getFlowState: (session: Session, agentId: string) => FlowManagerState | undefined;
        getFlowNode: (agent: FlowAgentConfig, nodeId?: string) => FlowAgentConfig['flow']['nodes'][number] | undefined;
        isFlowAgent: (agent: AgentConfig) => agent is FlowAgentConfig;
    }): {
        config: ExtractionConfig;
        nodeId?: string;
    } | null;
    private getExtractionMemoryKey;
    private toExtractionData;
    readExtractionSnapshot(session: Session, memoryKey: string): ExtractionSnapshot | null;
    writeExtractionSnapshot(session: Session, snapshot: ExtractionSnapshot, touchSession: (session: Session) => void): void;
    mergeExtractionIntoFlowState(session: Session, agent: FlowAgentConfig, data: Record<string, unknown>, helpers: {
        getFlowState: (session: Session, agentId: string) => FlowManagerState | undefined;
        setFlowState: (session: Session, agentId: string, state: FlowManagerState) => void;
    }): void;
    buildExtractionSystemBlock(snapshot: ExtractionSnapshot): string;
    runTurnExtraction(agent: AgentConfig, context: RunContext, input: string, helpers: {
        getFlowState: (session: Session, agentId: string) => FlowManagerState | undefined;
        setFlowState: (session: Session, agentId: string, state: FlowManagerState) => void;
        getFlowNode: (agent: FlowAgentConfig, nodeId?: string) => FlowAgentConfig['flow']['nodes'][number] | undefined;
        isFlowAgent: (agent: AgentConfig) => agent is FlowAgentConfig;
        touchSession: (session: Session) => void;
        emitMetric?: (name: string, data: Record<string, unknown>) => void;
    }, abortSignal?: AbortSignal, opts?: {
        model?: LanguageModel;
    }): Promise<ExtractionSnapshot | null>;
}