code: def InsertGrad(op, dmap):
      _, k, v = op.inputs
      key_grad = None
      (value_grad, map_grad) = cond.cond(
          tensor_map_has_key(dmap, k),
          lambda: (
              tensor_map_lookup(dmap, k, v.dtype),
              tensor_map_erase(dmap, k, v.dtype),
          ),
          lambda: (array_ops.zeros_like(v), dmap),
      )
      return map_grad, key_grad, value_grad
  
file_path: tensorflow/tensorflow/python/ops/map_ops.py
imports: from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import gen_map_ops
  from tensorflow.python.ops.gen_map_ops import *
label_desc: Use image node_id 9 for calling a global function with example usage: InsertGrad(op, dmap) and returns: map_grad,  key_grad,  value_grad