code: def test_daub(self):
      with pytest.deprecated_call():
          for i in range(1, 15):
              assert_equal(len(wavelets.daub(i)), i * 2)
  
file_path: scipy/scipy/signal/tests/test_wavelets.py
imports: import numpy
  from numpy.testing import assert_equal, assert_array_equal, assert_array_almost_equal, assert_array_less, assert_
  import pytest
  import scipy.signal._wavelets
label_desc: Use image node_id 2 for calling the TestWavelets obj's underlying member method code with example usage: obj.test_daub() without return types