class_docstr: Other tests for is_independent.
class_docstr_tok: ["Other","tests","for","is_independent","."]
docstr: Test that an error is raised if an unknown interface is requested.
docstr_tok: ["Test","that","an","error","is","raised","if","an","unknown","interface","is","requested","."]
code: def test_unknown_interface(self):
      """Test that an error is raised if an unknown interface is requested."""
      with pytest.raises(ValueError, match="Unknown interface: hello"):
          is_independent(lambda x: x, "hello", (0.1,))
  
imports: import pytest
  import numpy
  from pennylane import numpy
  import pennylane
  from pennylane.math import is_independent
  from pennylane.math.is_independent import _get_random_args
label_desc: Use image node_id 1 for calling the TestOther obj's underlying member method code with example usage: obj.test_unknown_interface() without return types