code: def test_get_num_days_required():
      actual = ffn.core.get_num_days_required(
          pd.DateOffset(months=3), perc_required=1.0
      )
      assert actual >= 60
  
      actual = ffn.core.get_num_days_required(
          pd.DateOffset(months=3), perc_required=1.0, period="m"
      )
      assert actual >= 3
  
imports: import ffn
  import pandas
  import numpy
  from pytest import fixture
  from numpy.testing import assert_almost_equal
label_desc: Use image node_id 23 for calling a global function with example usage: test_get_num_days_required() without return types