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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 Solve(self, stops=None, barriers=None, returnDirections=None, returnRoutes=None, returnStops=None, returnBarriers=None, outSR=None, ignoreInvalidLocations=None, outputLines=None, findBestSequence=None, preserveFirstStop=None, preserveLastStop=None, useTimeWindows=None, startTime=None, accumulateAttributeNames=None, impedanceAttributeName=None, restrictionAttributeNames=None, restrictUTurns=None, useHierarchy=None, directionsLanguage=None, outputGeometryPrecision=None, directionsLengthUnits=None, directionsTimeAttributeName=None, attributeParameterValues=None, polylineBarriers=None, polygonBarriers=None):
 """The solve operation is performed on a network layer resource. At 9.3.1, the solve operation is supported only on the route layer. Or specifically, on a network layer whose layerType is esriNAServerRouteLayer. You can provide arguments to the solve route operation as query parameters defined in the parameters table below. """

        def ptlist_as_semilist(lst):
            if isinstance(lst, geometry.Point):
                lst = [lst]
            if isinstance(lst, (list, tuple)):
                return ";".join(','.join(str(x) for x in pt) for pt in lst)
            return lst
        if self.layerType != "esriNAServerRouteLayer":
            raise TypeError("Layer is of type %s; Solve is not available."
                            % self.layerType)
        return self._get_subfolder('solve/', NetworkSolveResult,
                       {'stops': ptlist_as_semilist(stops),
                        'barriers': ptlist_as_semilist(barriers),
                        'returnDirections': returnDirections,
                        'returnRoutes': returnRoutes,
                        'returnStops': returnStops,
                        'returnBarriers': returnBarriers,
                        'outSR': outSR,
                        'ignoreInvalidLocations': ignoreInvalidLocations,
                        'outputLines': outputLines,
                        'findBestSequence': findBestSequence,
                        'preserveFirstStop': preserveFirstStop,
                        'preserveLastStop': preserveLastStop,
                        'useTimeWindows': useTimeWindows,
                        'startTime': startTime,
                        'accumulateAttributeNames': accumulateAttributeNames,
                        'impedanceAttributeName': impedanceAttributeName,
                        'restrictionAttributeNames': restrictionAttributeNames,
                        'restrictUTurns': restrictUTurns,
                        'useHierarchy': useHierarchy,
                        'directionsLanguage': directionsLanguage,
                        'outputGeometryPrecision': outputGeometryPrecision,
                        'directionsLengthUnits': directionsLengthUnits,
                        'directionsTimeAttributeName':
                                                  directionsTimeAttributeName,
                        'attributeParameterValues': attributeParameterValues,
                        'polylineBarriers': polylineBarriers,
                        'polygonBarriers': polygonBarriers})