Use Self instead of a TypeVar

Author: jazzthief

lib/sqlalchemy/sql/elements.py

@@ -107,8 +107,6 @@
     from .selectable import FromClause
     from .selectable import NamedFromClause
     from .selectable import TextualSelect
-    from .selectable import Select
-    from .sqltypes import ARRAY
     from .sqltypes import Boolean
     from .sqltypes import NullType
     from .sqltypes import String
@@ -421,10 +419,10 @@ def _clone(self, **kw: Any) -> Self:
         return c
 
     def _negate_in_binary(
-        self: SelfClauseElement,
+        self,
         negated_op: OperatorType,
         original_op: OperatorType,
-    ) -> SelfClauseElement:
+    ) -> Self:
         """a hook to allow the right side of a binary expression to respond
         to a negation of the binary expression.