def METHOD_NAME(self):
    if self.Mesh == None:
        self.PrintError('Error: No input mesh.')
    wrappedData = dsa.WrapDataObject(self.Mesh)
    # (npoints, 3) array of xyz coordinates. values in Cells index to the
    # rows of this array (Cells.max() = Points.shape[0] - 1)
    points = np.array(wrappedData.Points)
    self.ArrayDict['Points'] = points
    if self.StructureCellsAsList:
        cellPointIdsList = self._ConvertFlatCellsArrayToList(np.array(wrappedData.Cells),
                                                            np.array(wrappedData.CellLocations))
        self.ArrayDict['Cells']['CellPointIds'] = cellPointIdsList
    else:
        # flat list of locations which index the beginning of a cell in the
        # Cell array (same size as CellTypes and CellEntityIds)
        cellLocations = np.array(wrappedData.CellLocations)
        self.ArrayDict['Cells']['CellLocations'] = cellLocations
        # flat array which defines the npoints/cell and indexes of rows
        # in Points array which define each cell's XYZ locations
        cells = np.array(wrappedData.Cells)
        self.ArrayDict['Cells']['CellPointIds'] = cells
    # flat array of shape == cellEntityIds == cellLocations which defines
    # the intiger descriptor of the VTK_CELL_TYPE for each cell in cells
    cellTypes = np.array(wrappedData.CellTypes)
    self.ArrayDict['Cells']['CellTypes'] = cellTypes
    if self.ReturnCellTypesAsStrings == 1:
        typeDict = vividict()
        uniqueCellTypes = np.unique(cellTypes)
        for cellType in uniqueCellTypes:
            typeDict[vtk.vtkCellTypes.GetClassNameFromTypeId(cellType)] = np.array([cellType])
        self.ArrayDict['Cells']['CellTypesAsStrings'] = typeDict
    for cellDataKey in wrappedData.CellData.keys():
        cellData = wrappedData.CellData.GetArray(cellDataKey)
        self.ArrayDict['CellData'][cellDataKey] = cellData
    for pointDataKey in wrappedData.PointData.keys():
        pointData = wrappedData.PointData.GetArray(pointDataKey)
        self.ArrayDict['PointData'][pointDataKey] = pointData