code: def testInject_MissingDependency_DefaultArgumentUsed(self):
      mod = module.DependencyModule()
      mod.provide_value(42, name="x")
  
      def add(x: int, y: int = 1):
          return x + y
  
      self.assertEqual(mod.call(add), 43)
  
imports: import dataclasses
  from typing import Optional, Union
  import tensorflow
  from tfx.utils.di import errors
  from tfx.utils.di import module
label_desc: Use image node_id 6 for calling the ModuleTest obj's underlying member method code with example usage: obj.testInject_MissingDependency_DefaultArgumentUsed() and returns: unknown