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Lib/site-packages/django/contrib/postgres/fields/jsonb.py

@@ -0,0 +1,43 @@
+import warnings
+
+from django.db.models import JSONField as BuiltinJSONField
+from django.db.models.fields.json import (
+    KeyTextTransform as BuiltinKeyTextTransform,
+    KeyTransform as BuiltinKeyTransform,
+)
+from django.utils.deprecation import RemovedInDjango40Warning
+
+__all__ = ['JSONField']
+
+
+class JSONField(BuiltinJSONField):
+    system_check_deprecated_details = {
+        'msg': (
+            'django.contrib.postgres.fields.JSONField is deprecated. Support '
+            'for it (except in historical migrations) will be removed in '
+            'Django 4.0.'
+        ),
+        'hint': 'Use django.db.models.JSONField instead.',
+        'id': 'fields.W904',
+    }
+
+
+class KeyTransform(BuiltinKeyTransform):
+    def __init__(self, *args, **kwargs):
+        warnings.warn(
+            'django.contrib.postgres.fields.jsonb.KeyTransform is deprecated '
+            'in favor of django.db.models.fields.json.KeyTransform.',
+            RemovedInDjango40Warning, stacklevel=2,
+        )
+        super().__init__(*args, **kwargs)
+
+
+class KeyTextTransform(BuiltinKeyTextTransform):
+    def __init__(self, *args, **kwargs):
+        warnings.warn(
+            'django.contrib.postgres.fields.jsonb.KeyTextTransform is '
+            'deprecated in favor of '
+            'django.db.models.fields.json.KeyTextTransform.',
+            RemovedInDjango40Warning, stacklevel=2,
+        )
+        super().__init__(*args, **kwargs)