message: [XLA:Python] Replace usage of deprecated collections.Sequence with collections.abc.Sequence.
  Fixes warning in Python 3.7 (and breakage in Python 3.8).
diff: @@ -1585,7 +1585,7 @@ class ComputationBuilder(object):
  """
  operands = (
  list(operands)
  - if isinstance(operands, collections.Sequence) else [operands])
  + if isinstance(operands, collections.abc.Sequence) else [operands])
  return ops.Sort(self._builder, operands, dimension,
  comparator.computation if comparator else None)
  