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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 mask(self, vector, mask_shape_nodata=False):
 """ Set pixels outside vector as nodata. :param vector: GeoVector, GeoFeature, FeatureCollection :param mask_shape_nodata: if True - pixels inside shape are set nodata, if False - outside shape is nodata :return: GeoRaster2 """

        from telluric.collections import BaseCollection

        # crop raster to reduce memory footprint
        cropped = self.crop(vector)

        if isinstance(vector, BaseCollection):
            shapes = [cropped.to_raster(feature) for feature in vector]
        else:
            shapes = [cropped.to_raster(vector)]

        mask = geometry_mask(shapes, (cropped.height, cropped.width), Affine.identity(), invert=mask_shape_nodata)
        masked = cropped.deepcopy_with()
        masked.image.mask |= mask
        return masked