Use Keyv type for KeyvMulti.Options stores (#211)

The "remote" and "local" types were incorrectly set to a JS Map (which
Keyv uses under the hood). With these changes consuming apps can pass
any Keyv store to the Multi class constructor

packages/multi/src/index.d.ts

@@ -1,7 +1,7 @@
-import { Store } from '@keyvhq/core'
+import Keyv, { Store } from '@keyvhq/core'
 
 declare class KeyvMulti<TValue> implements Store<TValue> {
-  constructor (options: KeyvMulti.Options)
+  constructor (options: KeyvMulti.Options<TValue>)
 
   get (key: string): Promise<TValue>
   has (key: string): Promise<boolean>
@@ -12,9 +12,9 @@ declare class KeyvMulti<TValue> implements Store<TValue> {
 }
 
 declare namespace KeyvMulti {
-  interface Options {
-    local?: Map<string, any>
-    remote?: Map<string, any>
+  interface Options<TValue> {
+    local?: Keyv<TValue>
+    remote?: Keyv<TValue>
     validator?: () => boolean
   }
   interface ClearOptions {

packages/multi/test/index.test-d.ts

@@ -4,8 +4,8 @@ import Keyv from '@keyvhq/core'
 import KeyvMulti from '../src'
 
 const store = new KeyvMulti({
-  local: new Map(),
-  remote: new Map()
+  local: new Keyv(),
+  remote: new Keyv()
 })
 
 new Keyv({ store }).clear({ localOnly: true })