code: def raster_list_vrt(rasters, relative_to_vrt=True, nodata=None, mask_band=None):
      
  
      from telluric import FeatureCollection
      fc = FeatureCollection.from_georasters(rasters)
      return raster_collection_vrt(fc, relative_to_vrt, nodata, mask_band)
docs: Make a VRT XML document from a list of GeoRaster2 objects.
      Parameters
      ----------
      rasters : list
          The list of GeoRasters.
      relative_to_vrt : bool, optional
          If True the bands simple source url will be related to the VRT file
      nodata : int, optional
          If supplied is the note data value to be used
      mask_band: int, optional
          If specified detrimes from which band to use the mask
      Returns
      -------
      bytes
          An ascii-encoded string (an ElementTree detail)