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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 DropTables(self):
 """Drop all existing tables."""


    rows, _ = self.ExecuteQuery(
        "SELECT table_name FROM information_schema.tables "
        "WHERE table_schema='%s'" % self.database_name)
    for row in rows:
      self.ExecuteQuery("DROP TABLE `%s`" % row["table_name"])