class_docstr: A Python context for wrapping a cancellable ConcreteFunction.
code: def __init__(self, cancellation_manager):
      self._cancellation_manager = cancellation_manager
  
file_path: tensorflow-upstream/tensorflow/python/eager/cancellation.py
imports: from tensorflow.python import pywrap_tfe
label_desc: Use image node_id 1 to create a new CancellationManagerContext object  with example: obj = CancellationManagerContext(cancellation_manager)