code: def builder(
      make_ensemble_builder: Callable[..., EnsembleBuilder]
  ) -> EnsembleBuilder:
      """A default ensemble builder"""
      return make_ensemble_builder()
  
imports: from __future__ import annotations
  from typing import Callable
  import random
  import time
  from pathlib import Path
  import numpy
  from autosklearn.automl_common.common.utils.backend import Backend
  from autosklearn.ensemble_building import EnsembleBuilder, Run
  from autosklearn.metrics import Scorer, accuracy, make_scorer
  from autosklearn.util.functional import bound, pairs
  import pytest
  from pytest_cases import fixture, parametrize
  from unittest.mock import Mock, patch
  from test.conftest import DEFAULT_SEED
  from test.fixtures.metrics import acc_with_X_data
label_desc: Use image node_id 1 for calling a global function with example usage: builder(make_ensemble_builder) and returns: make_ensemble_builder