code: def override_default_args(**kwargs):
    
  
    override_default_kwargs = kwargs
  
    def custom_getter(getter, *args, **kwargs):
      """Custom getter with certain named arguments overridden.
  
      Args:
        getter: Underlying variable getter to invoke.
        *args: Arguments, compatible with those of tf.get_variable.
        **kwargs: Keyword arguments, compatible with those of tf.get_variable.
  
      Returns:
        The result of invoking `getter(*args, **kwargs)` except that certain
        kwargs entries may have been overridden.
      """
      updated_kwargs = override_default_kwargs.copy()
      updated_kwargs.update({kw: value for kw, value in six.iteritems(kwargs)
                             if value is not None})
      return getter(*args, **updated_kwargs)
  
    return custom_getter
docs: Creates a custom getter that applies specified named arguments.
  
    The returned custom getter treats the specified named arguments as revised
    defaults, and does not override any non-`None` argument values supplied by
    the original get_variable call (or by a nested scope's custom getter).
  
    Args:
      **kwargs: Overriding arguments for the custom getter to use in preference
        the named arguments it's called with.
  
    Returns:
      Custom getter.