code: def from_fits_images(cls, path_l, max_norder):
          
          moc = MOC()
          for path in path_l:
              header = fits.getheader(path)
              current_moc = MOC.from_image(header=header, max_norder=max_norder)
              moc = moc.union(current_moc)
  
          return moc
docs: Loads a MOC from a set of FITS file images.
  
          Parameters
          ----------
          path_l : [str]
              A list of path where the fits image are located.
          max_norder : int
              The MOC resolution.
  
          Returns
          -------
          moc : `~mocpy.moc.MOC`
              The union of all the MOCs created from the paths found in ``path_l``.