code: def _LogOpGradients(op: ops.Operation, out_grads, in_grads):
      """Log the in and out grads of an op."""
      logging.vlog(1, "Gradient for '" + op.name + "'")
  
      def _FilterGrad(x):
          if x is None:
              return False
          if isinstance(x, (list, tuple)):
              return bool(x)
          else:
              return True
  
      logging.vlog(
          1,
          "  in  --> %s",
          ", ".join(x.name for x in out_grads if _FilterGrad(x)),
      )
      logging.vlog(
          1,
          "  out --> %s",
          ", ".join(x.name for x in in_grads if _FilterGrad(x)),
      )
  
imports: import collections
  import contextlib
  from tensorflow.core.framework import attr_value_pb2
  from tensorflow.python import pywrap_tfe
  from tensorflow.python.eager import backprop_util
  from tensorflow.python.eager import context
  from tensorflow.python.framework import composite_tensor
  from tensorflow.python.framework import composite_tensor_gradient
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import indexed_slices
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import control_flow_ops
  from tensorflow.python.ops import control_flow_state
  from tensorflow.python.ops import control_flow_util
  from tensorflow.python.ops import default_gradient
  from tensorflow.python.ops import gen_functional_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops.unconnected_gradients import UnconnectedGradients
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import compat
  from tensorflow.python.util import object_identity
  from tensorflow.python.util import variable_utils
  from tensorflow.python.util.compat import collections_abc
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 26 for calling a global function with example usage: _LogOpGradients(op, out_grads, in_grads) and returns: False, bool, True