code: def test_annualize():
      assert ffn.annualize(0.1, 60) == (1.1 ** (1.0 / (60.0 / 365)) - 1)
  
imports: import ffn
  import pandas
  import numpy
  from pytest import fixture
  from numpy.testing import assert_almost_equal
label_desc: Use image node_id 33 for calling a global function with example usage: test_annualize() without return types