def shapeChunkData(self):
        """
        Determines the shape of the terrain data.
        :return:
        """
        chunkSize = 16
        self.Blocks.shape = (chunkSize, chunkSize, self.Height)
        self.SkyLight.shape = (chunkSize, chunkSize, self.Height)
        self.BlockLight.shape = (chunkSize, chunkSize, self.Height)
        self.Data.shape = (chunkSize, chunkSize, self.Height)
        self.DirtyColumns.shape = chunkSize, chunkSize

        Determines the shape of the terrain data.
        :return:
        
pymclevel/leveldbpocket.py