old_contents: import chainerx
  
  
  def relu(x):
      """Rectified Linear Unit function.
  
  Args:
      x (~chainerx.ndarray): Input array.
  
  Returns:
      :class:`~chainerx.ndarray`: Returned array: :math:`y = \\max (0, x)`.
  
  Note:
      During backpropagation, this function propagates the gradient of the
      output array to the input array ``x``.
  """
      # TODO(imanishi): The function should also be available to C++ users
      return chainerx.maximum(0, x)
  
  
new_contents: import chainerx
  
  
  def relu(x):
      """Rectified Linear Unit function.
  
  Args:
      x (~chainerx.ndarray): Input array.
  
  Returns:
      :class:`~chainerx.ndarray`: Returned array: :math:`y = \\max (0, x)`.
  
  Note:
      During backpropagation, this function propagates the gradient of the
      output array to the input array ``x``.
  """
      # TODO(imanishi): The function should also be available to C++ users
      return chainerx.maximum(0, x)
  
subject: fix formatting