<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def summarise(self):
 """ extrapolate a human readable summary of the contexts """

        res = ''
        if self.user == 'Developer': 
            if self.host == 'Home PC':
                res += 'At Home'
            else:
                res += 'Away from PC'
        elif self.user == 'User' and self.host == 'Home PC':
            res += 'Remote desktop into home PC'
        res += '\n'
        res += self.transport
        return res