code: def _L2LossGrad(op: ops.Operation, grad):
      """Return the gradients for L2Loss.
  
      Args:
        op: The L2LossOp for which we need to generate gradients.
        grad: Tensor containing a single number.
  
      Returns:
        The gradient, which is (x * grad).
      """
      return op.inputs[0] * grad
  
imports: import functools
  import itertools
  import operator
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import array_ops_stack
  from tensorflow.python.ops import gen_nn_ops
  from tensorflow.python.ops import math_ops
label_desc: Use image node_id 54 for calling a global function with example usage: _L2LossGrad(op, grad) and returns: unknown