docs: def pil_image_to_django_file(self, pil_image):
          '''
          Gets a PIL image ready to be able to be saved using
          :py:meth:`django.db.models.fields.files.FieldFile.save`
  
          It converts the mode first to ``RGB`` or ``L``, so that it can
          then save it as a ``JPEG``. It will save it as a progressive
          ``JPEG`` with a quality of :py:attr:`IMAGE_QUALITY`.
  
          :param pil_image: original image
          :type pil_image: :py:class:`PIL.Image.Image`
          :return: transformed image
          :rtype: :py:class:`django.core.files.base.ContentFile`
          '''
          if pil_image.mode not in ('L', 'RGB'):
              pil_image = pil_image.convert("RGB")
          temp_io = six.BytesIO()
  
          pil_image.save(
              temp_io,
              "JPEG",
              quality=self.IMAGE_QUALITY,
              optimize=True,
              progressive=True,
              icc_profile=pil_image.info.get('icc_profile')
          )
  
          temp_io.seek(0)
          django_file = ContentFile(temp_io.getvalue())
          return django_file