code: def test_manypeaks_speed():
      model = None
      t0 = time.time()
      for i in np.arange(500):
          g = Model(gaussian, prefix=f"g{i}")
          if model is None:
              model = g
          else:
              model += g
      t1 = time.time()
      pars = model.make_params()
      t2 = time.time()
      _cpars = deepcopy(pars)  # noqa: F841
      t3 = time.time()
  
      # these are very conservative tests that
      # should be satisfied on nearly any machine
      assert (t3 - t2) < 0.5
      assert (t2 - t1) < 0.5
      assert (t1 - t0) < 5.0
  
file_path: lmfit-py/tests/test_manypeaks_speed.py
imports: from copy import deepcopy
  import sys
  import time
  import numpy
  import pytest
  from lmfit import Model
  from lmfit.lineshapes import gaussian
label_desc: Use image node_id 1 for calling a global function with example usage: test_manypeaks_speed() without return types