如何使用 RemovedInNextVersionWarning?

how to use RemovedInNextVersionWarning?

我写了一个 Django 库,我想更新它。但是我需要对使用它的人说,这个功能以后会被移除,我该怎么说呢?

class ModelAdmin(admin.ModelAdmin):
      def __init__(self, *args, **kwargs):
          super(ModelAdmin, self).__init__(*args, **kwargs)
          self.formfield_overrides = overrides
          warnings.filterwarnings(
              'ignore',
              'please use "ModelAdminJalaliMixin". example: class YourClass (admin.ModelAdmin, ModelAdminJalaliMixin):',
               RemovedInNextVersionWarning
          )
from django.utils.deprecation import RemovedInNextVersionWarning
import warnings     
warnings.warn('WarningString', RemovedInNextVersionWarning)

warnings are python module, RemovedInNextVersionWarning is django class extended on DeprecationWarning