code: def test_exception_for_unnamed_arguments():
      i1 = C.input_variable((1, 2), name="i1")
      i2 = C.input_variable((2, 1), name="i2")
      root_node = C.plus(i1, i2)
      input1 = [[[1, 2]]]
      input2 = [[[[1], [2]]]]
  
      with pytest.raises(Exception):
          # not allowed, since plus has more than 1 input
          result = root_node.eval([input1, input2])
  
imports: import numpy
  import os
  import pytest
  import cntk
  from .ops_test_utils import compare_lists_of_np_arrays, AA, cntk_device
  from cntk.io import MinibatchSource, CTFDeserializer, StreamDefs, StreamDef
label_desc: Use image node_id 6 for calling a global function with example usage: test_exception_for_unnamed_arguments() without return types