import type { TreeNode } from "../types.js";
export declare function span(label: string, children: TreeNode[], opts?: {
    id?: string;
}): TreeNode;
export declare function leaf(type: string, at: number, data?: Record<string, unknown>): TreeNode;
export declare function trace(children: TreeNode[]): TreeNode;
export declare function benchForest(): TreeNode[];
/** Two turns: a question, a 9m54s wait, a second question, then the run
 *  sat for 4m51s before it ended. Each message is a `turnStart`, as the
 *  REPL logs them. */
export declare function sessionTrace(): TreeNode;