docs: def formfield_for_dbfield(self, db_field, **kwargs):
          """
          Adds the "Send to Twitter" checkbox after the "status" field,
          provided by any ``Displayable`` models. The approach here is
          quite a hack, however the sane approach of using a custom
          form with a boolean field defined, and then adding it to the
          formssets attribute of the admin class fell apart quite
          horrifically.
          """
          formfield = super(TweetableAdminMixin,
              self).formfield_for_dbfield(db_field, **kwargs)
          if Api and db_field.name == "status" and get_auth_settings():
              def wrapper(render):
                  def wrapped(*args, **kwargs):
                      rendered = render(*args, **kwargs)
                      label = _("Send to Twitter")
                      return mark_safe(rendered + FORMFIELD_HTML % label)
                  return wrapped
              formfield.widget.render = wrapper(formfield.widget.render)
          return formfield