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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 run_fn(self, name, *args, **kwds):
 """Run pre-built functionality that used Broad tools by name. See the gatkrun, picardrun module for available functions. """

        fn = None
        to_check = [picardrun]
        for ns in to_check:
            try:
                fn = getattr(ns, name)
                break
            except AttributeError:
                pass
        assert fn is not None, "Could not find function %s in %s" % (name, to_check)
        return fn(self, *args, **kwds)