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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_summaries():
 """Remove summaries from the default graph."""

  g = tf.get_default_graph()
  key = tf.GraphKeys.SUMMARIES
  log_debug("Remove summaries %s" % str(g.get_collection(key)))
  del g.get_collection_ref(key)[:]
  assert not g.get_collection(key)