class_docstr: A generic error that is raised when TensorFlow execution fails.
  
  Whenever possible, the session will raise a more specific subclass
  of `OpError` from the `tf.errors` module.
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docstr: The operation that failed, if known.
  
  *N.B.* If the failed op was synthesized at runtime, e.g. a `Send`
  or `Recv` op, there will be no corresponding
  @{tf.Operation}
  object.  In that case, this will return `None`, and you should
  instead use the @{tf.OpError.node_def} to
  discover information about the op.
  
  Returns:
    The `Operation` that failed, or None.
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code: def op(self):
      """The operation that failed, if known.
  
      *N.B.* If the failed op was synthesized at runtime, e.g. a `Send`
      or `Recv` op, there will be no corresponding
      @{tf.Operation}
      object.  In that case, this will return `None`, and you should
      instead use the @{tf.OpError.node_def} to
      discover information about the op.
  
      Returns:
        The `Operation` that failed, or None.
      """
      return self._op
  
imports: import traceback
  import warnings
  from .None import error_codes
label_desc: Use image node_id 3 for calling the OpError obj's underlying member method code with example usage: obj.op() and returns: self