import { FlowMetadata } from '../models/FlowMetadata';
import { ToolCall } from '../models/ToolCall';
import { VideoSegment } from '../models/VideoSegment';
import { FlowsPersistence, PaginatedFlowsResult } from './FlowsPersistence';
import { BrowserStorageState } from '../models/BrowserStorageState';
import { FlowsQuery } from '../models/FlowsQuery';
/**
 * A volatile (in-memory) implementation of FlowsPersistence.
 */
export declare class FlowsPersistenceVolatile implements FlowsPersistence {
    private readonly flows;
    private readonly screenshots;
    private readonly toolCalls;
    private readonly videos;
    private readonly files;
    private readonly browserStates;
    saveMetadata(flowMetadata: FlowMetadata): Promise<void>;
    getMetadataByFlowId(flowId: string): Promise<FlowMetadata>;
    getMetadataByFlowName(flowName: string): Promise<FlowMetadata>;
    savePngScreenShot(flowId: string, bytes: Buffer): Promise<string>;
    getPngScreenShot(flowId: string, screenShotId: string): Promise<Buffer | null>;
    saveToolCall(flowId: string, toolCall: ToolCall): Promise<void>;
    getToolCalls(flowId: string): Promise<ToolCall[]>;
    /**
     * Get flows with pagination and filtering from in-memory storage.
     */
    getFlows(query: FlowsQuery): Promise<PaginatedFlowsResult>;
    setVideo(flowId: string, bytes: Buffer): Promise<void>;
    getVideoSegment(flowId: string, startOffset: number, length: number): Promise<VideoSegment | null>;
    getFlowFile(flowId: string, fileId: string): Promise<Buffer | null>;
    setFlowFile(flowId: string, fileId: string, fileBytes: Buffer): Promise<void>;
    setBrowserState(flowId: string, browserState: BrowserStorageState): Promise<void>;
    getBrowserState(flowId: string): Promise<BrowserStorageState | null>;
    deleteFlow(flowId: string): Promise<void>;
}
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