code: def test_ajdc_init():
      ajdc = AJDC(fmin=1, fmax=32, fs=64)
      assert ajdc.window == 128
      assert ajdc.overlap == 0.5
      assert ajdc.dim_red is None
      assert ajdc.verbose
  
imports: from conftest import get_metrics
  import pytest
  import numpy
  from numpy.testing import assert_array_equal
  from pyriemann.spatialfilters import Xdawn, CSP, SPoC, BilinearFilter, AJDC
label_desc: Use image node_id 12 for calling a global function with example usage: test_ajdc_init() without return types