docstr: Pass no data into the GaussianKDE class.
docstr_tok: ["Pass","no","data","into","the","GaussianKDE","class","."]
code: def test_no_data(self):
      """Pass no data into the GaussianKDE class."""
      with pytest.raises(ValueError):
          mlab.GaussianKDE([])
  
imports: from numpy.testing import assert_allclose, assert_almost_equal, assert_array_equal, assert_array_almost_equal_nulp
  import numpy
  import pytest
  from matplotlib import mlab
label_desc: Use image node_id 1 for calling the TestGaussianKDECustom obj's underlying member method code with example usage: obj.test_no_data() without return types