rewrite: Tasklist module.

bot/data/__init__.py

@@ -1,4 +1,4 @@
-from .conditions import Condition, condition
+from .conditions import Condition, condition, NULL
 from .database import Database
 from .models import RowModel, RowTable, WeakCache
 from .table import Table
@@ -6,4 +6,4 @@ from .base import Expression, RawExpr
 from .columns import ColumnExpr, Column, Integer, String
 from .registry import Registry, AttachableClass, Attachable
 from .adapted import RegisterEnum
-from .queries import ORDER, NULLS
+from .queries import ORDER, NULLS, JOINTYPE