code: def test_dot(self):
      actual = self.eval(
          tf_utils.dot(
              np.arange(10).astype(np.float32),
              2 * np.arange(10).astype(np.float32),
          )
      )
      self.assertEqual(actual, 570)
  
imports: import pytest
  import numpy
  import tensorflow
  from tensorflow.errors import FailedPreconditionError
  from neupy import init
  from neupy.utils import tf_utils, asfloat
  from base import BaseTestCase
label_desc: Use image node_id 2 for calling the TFUtilsTestCase obj's underlying member method code with example usage: obj.test_dot() without return types