class_docstr: A `ControlFlowContext` for nodes inside an XLA computation cluster.
  
  THIS IS ONLY FOR TENSORFLOW INTERNAL IMPLEMENTATION, DO NO USE DIRECTLY.
  
  The primary role of `XLACompileContext` is to mark operators inside a
  xla.compile() computation with attribute "_xla_compile_id=XYZ", where XYZ is
  a unique name.
  
  `ControlFlowContext` is used to perform the annotation since it integrates
  with Tensorflow constructs like ResourceVariables. For example, if a
  `ResourceVariable` is constructed inside a xla.compile() block, the
  `ResourceVariable` implementation can use
  `with ops.control_dependencies(None)` to build the variable's definition
  outside the compiled computation.
code: def grad_state(self):
      # Define the gradient loop state associated with the XLACompileContext to
      # be None as the XLACompileContext does not get nested nor does the
      # grad_state outside the XLACompileContext affect the graph inside so the
      # grad_state should be as if this is the top-level gradient state.
      return None
  
imports: import contextlib
  from tensorflow.compiler.jit.ops import xla_ops
  from tensorflow.compiler.jit.ops import xla_ops_grad
  from tensorflow.core.framework import attr_value_pb2
  from tensorflow.python.distribute import summary_op_util
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import control_flow_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import compat
  from tensorflow.python.util import nest
  from tensorflow.python.util import tf_inspect
  from tensorflow.python.util.compat import collections_abc
  from tensorflow.python.util.deprecation import deprecated
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 7 for calling the XLACompileContext obj's underlying member method code with example usage: obj.grad_state() and returns: None