code: def test_unknown_kernel():
      estimator = SVC(kernel=lambda x, y: np.transpose(x) * y)
      estimator.fit([[1], [2]], [1, 2])
  
      with pytest.raises(
          ValueError,
          match="Unsupported kernel type '<function test_unknown_kernel.<locals>.<lambda> at .*",
      ):
          SklearnSVMModelAssembler(estimator)
  
file_path: m2cgen/tests/assemblers/test_svm_sklearn.py
imports: import numpy
  import pytest
  from sklearn.svm import SVC
  from m2cgen import ast
  from m2cgen.assemblers import SklearnSVMModelAssembler
  from tests.assemblers import utils
  from tests.utils import cmp_exprs
label_desc: Use image node_id 5 for calling a global function with example usage: test_unknown_kernel() without return types