text: from django.apps import apps
  from django.core.exceptions import ImproperlyConfigured
  
  from wagtail.images import get_image_model_string
  
  
  def get_image_model(require_ready=True):
      """
      Wagtail images/__init__.get_image_ready replacement with require_ready
      """
      model_string = get_image_model_string()
      try:
          app_label, model_name = model_string.split('.')
          return apps.get_model(app_label, model_name, require_ready=require_ready)
  
      except ValueError:
          raise ImproperlyConfigured("WAGTAILIMAGES_IMAGE_MODEL must be of the form 'app_label.model_name'")
      except LookupError:
          raise ImproperlyConfigured(
              "WAGTAILIMAGES_IMAGE_MODEL refers to model '%s' that has not been installed" % model_string
          )
  