code: def test_to_numpy(self):
      df = DataFrame({"A": [1, 2], "B": [3, 4.5]})
      expected = np.array([[1, 3], [2, 4.5]])
      result = df.to_numpy()
      tm.assert_numpy_array_equal(result, expected)
  
imports: import numpy
  from pandas import DataFrame, Timestamp
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestToNumpy obj's underlying member method code with example usage: obj.test_to_numpy() without return types