0.2

packages/core/package.json

@@ -4,5 +4,8 @@
   "type": "commonjs",
   "peerDependencies": {
     "effector": "^22.5.0"
+  },
+  "dependencies": {
+    "ts-toolbelt": "^9.6.0"
   }
 }

packages/core/src/createComputedField.ts

@@ -1,5 +1,5 @@
 import { combine } from 'effector';
-import type { Aggregate, ListApi, Selection, PossibleKey } from './types';
+import type { Aggregate, ListApi, PossibleKey, SelectionApi } from './types';
 
 import { createGroup } from './createGroup';
 
@@ -20,7 +20,7 @@ export function createComputedField<
   aggregateField: AggregateField;
   fn: (items: Item[], groupID: Item[AggregateField]) => Aggregation;
   when?: (item: Item, groupID: Item[AggregateField]) => boolean;
-  selection?: Selection<Item, Key>;
+  selection?: SelectionApi<Item, Key>;
   defaultValue: Aggregation;
 }): Aggregate<Item, Key, AggregateField, Aggregation> {
   const index = selection

packages/core/src/createGroup.ts

@@ -1,13 +1,13 @@
-import type { ListApi, Selection, IndexApi, PossibleKey } from './types';
 import { addAlwaysActivatedConsumer } from './consumerPort';
+import type { IndexApi, ListApi, PossibleKey, SelectionApi } from './types';
 
 export function createGroup<
   Item,
   Key extends PossibleKey,
   Field extends keyof Item
 >(args: {
   field: Field;
-  selection: Selection<Item, Key>;
+  selection: SelectionApi<Item, Key>;
 }): IndexApi<Item, Key, Field>;
 export function createGroup<
   Item,
@@ -25,7 +25,7 @@ export function createGroup<
 }: {
   kv?: ListApi<Item, Key>;
   field: Field;
-  selection?: Selection<Item, Key>;
+  selection?: SelectionApi<Item, Key>;
 }): IndexApi<Item, Key, Field> {
   if (!kv && !selection) {
     throw new Error(`Can't create index without kv or selection`);