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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 get_iterargs(self, item):
 """ Returns a tuple of all iterags for item, sorted by name."""

    # iterargs should always be mandatory, unless there's a good reason
    # not to, which I can't think of right now.

    args = self._get_aggregate_args(item, 'mandatoryArgs')
    return tuple(sorted([arg for arg in args if arg in self.iterargs]))