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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 description(self):
 """ Get a textual description of the service for which this object represents. @return: A textual description. @rtype: str """

        s = []
        indent = (lambda n :  '\n%*s'%(n*3,' '))
        s.append('Service ( %s ) tns="%s"' % (self.service.name, self.wsdl.tns[1]))
        s.append(indent(1))
        s.append('Prefixes (%d)' % len(self.prefixes))
        for p in self.prefixes:
            s.append(indent(2))
            s.append('%s = "%s"' % p)
        s.append(indent(1))
        s.append('Ports (%d):' % len(self.ports))
        for p in self.ports:
            s.append(indent(2))
            s.append('(%s)' % p[0].name)
            s.append(indent(3))
            s.append('Methods (%d):' % len(p[1]))
            for m in p[1]:
                sig = []
                s.append(indent(4))
                sig.append(m[0])
                sig.append('(')
                sig.append(', '.join("%s %s" % (self.xlate(p[1]), p[0]) for p
                    in m[1]))
                sig.append(')')
                try:
                    s.append(''.join(sig))
                except Exception:
                    pass
            s.append(indent(3))
            s.append('Types (%d):' % len(self.types))
            for t in self.types:
                s.append(indent(4))
                s.append(self.xlate(t[0]))
        s.append('\n\n')
        return ''.join(s)