changed the type of return value in not implemented methods

Author: mikeziminio

stubs/peewee/peewee.pyi

@@ -830,10 +830,10 @@ class Database(_callable_context_manager):
     def batch_commit(self, it, n) -> Generator[Incomplete, None, None]: ...
     def table_exists(self, table_name, schema: str | None = None): ...
     def get_tables(self, schema: str | None = None) -> None: ...
-    def get_indexes(self, table, schema: str | None = None) -> None: ...
-    def get_columns(self, table, schema: str | None = None) -> None: ...
+    def get_indexes(self, table, schema: str | None = None) -> list[IndexMetadata]: ...
+    def get_columns(self, table, schema: str | None = None) -> list[ColumnMetadata]: ...
     def get_primary_keys(self, table, schema: str | None = None) -> None: ...
-    def get_foreign_keys(self, table, schema: str | None = None) -> None: ...
+    def get_foreign_keys(self, table, schema: str | None = None) -> list[ForeignKeyMetadata]: ...
     def sequence_exists(self, seq) -> None: ...
     def create_tables(self, models: Iterable[Type[Model]], **options) -> None: ...
     def drop_tables(self, models: Iterable[Type[Model]], **kwargs) -> None: ...