code: def test_decimate():
      ones_f32 = np.ones(32, dtype=np.float32)
      assert_(decimate(ones_f32, 2).dtype == np.float32)
  
      ones_i64 = np.ones(32, dtype=np.int64)
      assert_(decimate(ones_i64, 2).dtype == np.float64)
  
file_path: catboost/contrib/python/scipy/py3/scipy/signal/tests/test_result_type.py
imports: import numpy
  from numpy.testing import assert_
  import pytest
  from scipy.signal import decimate, lfilter_zi, lfiltic, sos2tf, sosfilt_zi
label_desc: Use image node_id 1 for calling a global function with example usage: test_decimate() without return types