code: def test_cagr_df(df):
      data = df
      actual = data.calc_cagr()
      aae(actual["AAPL"], 0.440, 3)
      aae(actual["MSFT"], 0.041, 3)
      aae(actual["C"], -0.205, 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 16 for calling a global function with example usage: test_cagr_df(df) without return types