code: def get_default_blocks(self, top=False):
          
          default_blocks = []
  
          for block_model, block_name in self.glitter_page.default_blocks:
              block = apps.get_model(block_model)
              base_url = reverse('block_admin:{}_{}_add'.format(
                  block._meta.app_label, block._meta.model_name,
              ), kwargs={
                  'version_id': self.glitter_page.version.id,
              })
              block_qs = {
                  'column': self.name,
                  'top': top,
              }
              block_url = '{}?{}'.format(base_url, urlencode(block_qs))
              block_text = capfirst(force_text(block._meta.verbose_name))
  
              default_blocks.append((block_url, block_text))
  
          return default_blocks
docs: Return a list of column default block tuples (URL, verbose name).
  
          Used for quick add block buttons.