class_docstr: Squared error function.
code: def forward(self, inputs):
      x0, x1 = inputs
      diff = x0 - x1
      self.retain_inputs((0, 1))
      return (utils.force_array(diff * diff, dtype=x0.dtype),)
  
file_path: chainer/chainer/functions/loss/squared_error.py
imports: from chainer import function_node
  from chainer import utils
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the SquaredError obj's underlying member method code with example usage: obj.forward(inputs) and returns: utils