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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 table_names(self):
 """Returns names of all tables in the database"""

        query = "SELECT name FROM sqlite_master WHERE type='table'"
        cursor = self.connection.execute(query)
        results = cursor.fetchall()
        return [result_tuple[0] for result_tuple in results]