code: def _num_elements(losses):
      """Computes the number of elements in `losses` tensor."""
      with backend.name_scope("num_elements") as scope:
          return math_ops.cast(
              array_ops.size(losses, name=scope), dtype=losses.dtype
          )
  
imports: from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_conversion
  from tensorflow.python.keras import backend
  from tensorflow.python.keras.engine import keras_tensor
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.ragged import ragged_tensor
label_desc: Use image node_id 4 for calling a global function with example usage: _num_elements(losses) and returns: math_ops