Updates based on PR feedback

Author: bryanforbes

sqlalchemy-stubs/sql/sqltypes.pyi

@@ -6,6 +6,7 @@ from decimal import Decimal
 from typing import Any
 from typing import List
 from typing import Mapping
+from typing import NoReturn
 from typing import Optional
 from typing import Type
 from typing import TypeVar
@@ -328,7 +329,7 @@ class ARRAY(SchemaEventTarget, Indexable, Concatenable, TypeEngine[List]):
 class TupleType(TypeEngine[TupleType]):
     types: Any = ...
     def __init__(self, *types: Any) -> None: ...
-    def result_processor(self, dialect: Any, coltype: Any) -> None: ...
+    def result_processor(self, dialect: Any, coltype: Any) -> NoReturn: ...
 
 class REAL(Float):
     __visit_name__: str = ...

sqlalchemy-stubs/sql/type_api.pyi

@@ -56,9 +56,9 @@ class TypeEngine(Traversible, Generic[_T]):
         self, dialect: Any, conn_type: Any
     ) -> Any: ...
     def copy_value(self, value: _T) -> _T: ...
-    def literal_processor(self, dialect: Any) -> Optional[Callable[..., Any]]: ...
-    def bind_processor(self, dialect: Any) -> Optional[Callable[..., Any]]: ...
-    def result_processor(self, dialect: Any, coltype: Any) -> Optional[Callable[..., Any]]: ...
+    def literal_processor(self, dialect: Any) -> Optional[Callable[[Optional[_T]], str]]: ...
+    def bind_processor(self, dialect: Any) -> Optional[Callable[[Optional[_T]], Optional[Any]]]: ...
+    def result_processor(self, dialect: Any, coltype: Any) -> Optional[Callable[[Optional[Any]], Optional[_T]]]: ...
     def column_expression(self, colexpr: Any) -> Any: ...
     def bind_expression(self, bindvalue: Any) -> Any: ...
     def compare_values(self, x: Any, y: Any) -> bool: ...
@@ -102,11 +102,11 @@ class TypeDecorator(SchemaEventTarget, TypeEngine[_T]):
     def type_engine(self, dialect: Any) -> TypeEngine[Any]: ...
     def load_dialect_impl(self, dialect: Any) -> TypeEngine[Any]: ...
     def __getattr__(self, key: Any) -> Any: ...
-    def process_literal_param(self, value: Any, dialect: Any) -> Optional[str]: ...
-    def process_bind_param(self, value: Any, dialect: Any) -> Optional[Text]: ...
+    def process_literal_param(self, value: Optional[_T], dialect: Any) -> str: ...
+    def process_bind_param(self, value: Optional[_T], dialect: Any) -> Any: ...
     def process_result_value(self, value: Any, dialect: Any) -> Optional[_T]: ...
-    def literal_processor(self, dialect: Any) -> Callable[[Optional[_T]], Optional[str]]: ...
-    def bind_processor(self, dialect: Any) -> Callable[[Optional[_T]], Optional[str]]: ...
+    def literal_processor(self, dialect: Any) -> Callable[[Optional[_T]], str]: ...
+    def bind_processor(self, dialect: Any) -> Callable[[Optional[_T]], Optional[Any]]: ...
     def result_processor(self, dialect: Any, coltype: Any) -> Callable[[Optional[Any]], Optional[_T]]: ...
     def bind_expression(self, bindparam: Any) -> Any: ...
     def column_expression(self, column: Any) -> Any: ...
@@ -118,7 +118,7 @@ class TypeDecorator(SchemaEventTarget, TypeEngine[_T]):
     def sort_key_function(self) -> Optional[_SortKeyFunction]: ...  # type: ignore[override]
 
 class Variant(TypeDecorator[_T]):
-    impl: Type[TypeEngine[Any]] = ...
+    impl: TypeEngine[Any] = ...
     mapping: Mapping[str, TypeEngine[Any]] = ...
     def __init__(self, base: Any, mapping: Mapping[str, TypeEngine[Any]]) -> None: ...
     def coerce_compared_value(self: _VT, operator: Any, value: Any) -> Union[_VT, TypeEngine[Any]]: ...