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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_hit_count(self, database, enquire):
 """ Given a database and enquire instance, returns the estimated number of matches. Required arguments: `database` -- The database to be queried `enquire` -- The enquire instance """

        return self._get_enquire_mset(
            database, enquire, 0, database.get_doccount()
        ).size()