import type { NodeExecuteBeforeContext } from '@n8n/decorators';
import type { Tracer } from '@opentelemetry/api';
import type { SpanHandler } from './interfaces';
import type { SpanRegistry } from '../span-registry';
export declare class NodeStartHandler implements SpanHandler<NodeExecuteBeforeContext> {
    handle(ctx: NodeExecuteBeforeContext, spans: SpanRegistry, tracer: Tracer): void;
}
