code: def _SparseTensorDenseAddGrad(op: ops.Operation, out_grad):
      sp_indices = op.inputs[0]
      # (sparse_indices, sparse_values, sparse_shape, dense)
      return (
          None,
          array_ops.gather_nd(out_grad, sp_indices),
          None,
          out_grad,
      )
  
imports: from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_sparse_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import sparse_ops
label_desc: Use image node_id 3 for calling a global function with example usage: _SparseTensorDenseAddGrad(op, out_grad) and returns: None,  array_ops,  None,  out_grad