class_docstr: Base test class for TensorFlow Lite 2.x model tests.
class_docstr_tok: ["Base","test","class","for","TensorFlow","Lite","2.x","model","tests","."]
code: def _getSimpleVariableModel(self):
      root = autotrackable.AutoTrackable()
      root.v1 = variables.Variable(3.0)
      root.v2 = variables.Variable(2.0)
      root.f = def_function.function(lambda x: root.v1 * root.v2 * x)
      return root
  
imports: import os
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow.lite.python.interpreter import Interpreter
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.trackable import autotrackable
label_desc: Use image node_id 3 for calling the ModelTest obj's underlying member method code with example usage: obj._getSimpleVariableModel() and returns: root