Enhance ts type

[wzc520pyfm]

Describe the feature

We can improve the ts type as follows:

type TestObjType = {
  a: number;
  b: boolean;
};
type MyStorage = {
  foo: string;
  baz: TestObjType;
};
const storage = createStorage<MyStorage>();
await storage.getItem("foo"); // => <string>
await storage.getItem("baz"); // => <TestObjType>
storage.setItem("foo", "val"); // Check ok
storage.setItem("foo", 123); // TS error

and get hints as you type:

Additional information

• Would you be willing to help implement this feature?