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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 count_async(self, limit=None, **q_options):
 """Count the number of query results, up to a limit. This is the asynchronous version of Query.count(). """

    qry = self._fix_namespace()
    return qry._count_async(limit=limit, **q_options)