new_contents: import numpy as np
  
  from astroquery.skyview import SkyView
  
  class MaNGA_SkyView(SkyView):
      '''
      subclass of SkyView, which allows access to FITS thumbnails of
          a MaNGA object
      '''
      @classmethod
      def from_drpall_row(cls, row):
          raise NotImplementedError
  
      @classmethod
      def from_wcs_header(cls, header):
          raise NotImplementedError
  
subject: add FITS thumbnail retrieval tools, initial