<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def detectS60OssBrowser(self):
 """Return detection of Symbian S60 Browser Detects if the current browser is the Symbian S60 Open Source Browser. """

        #First, test for WebKit, then make sure it's either Symbian or S60.
        return self.detectWebkit() \
            and (UAgentInfo.deviceSymbian in self.__userAgent
                or UAgentInfo.deviceS60 in self.__userAgent)