/**
 * A single trace entry for a node execution.
 */
export interface TraceEntry {
    nodeKey: string;
    startTime: number;
    endTime: number;
    durationMs: number;
    resultStatus: string;
    resultMessage: string;
}
/**
 * Full process trace with timing data.
 */
export interface ProcessTrace {
    processKey: string;
    startTime: number;
    endTime: number;
    totalDurationMs: number;
    entries: TraceEntry[];
}
/**
 * Collects timing and execution data for process runs.
 */
export interface ProcessTraceCollector {
    startProcess(processKey: string): void;
    endProcess(): ProcessTrace;
    startNode(nodeKey: string): void;
    endNode(nodeKey: string, resultStatus: string, resultMessage: string): void;
}
/**
 * Default implementation of ProcessTraceCollector.
 */
export declare class DefaultProcessTraceCollector implements ProcessTraceCollector {
    private processKey;
    private processStartTime;
    private nodeStartTimes;
    private entries;
    startProcess(processKey: string): void;
    endProcess(): ProcessTrace;
    startNode(nodeKey: string): void;
    endNode(nodeKey: string, resultStatus: string, resultMessage: string): void;
}
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