<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def drop_table(self, tablename: str) -> int: """Drops a table. Use caution!"""

        sql = "DROP TABLE IF EXISTS {}".format(tablename)
        log.info("Dropping table " + tablename + " (ignore any warning here)")
        return self.db_exec_literal(sql)