Typescript error on "orderBy" option when using it with a dynamic property name

[serdarsen]

Hi everyone!

Thanks a lot for this project. While implementing my simple mock rest API, I couldn't fix the typescript error on the "orderBy" option when using it with a dynamic property name. Sorting is working correctly.

repository.ts(Ln 110):

orderBy {
  [sort]: order
}

yarn run tsc result:

src/mock/repository.ts:110:5 - error TS2322: Type '{ [x: string]: "asc" | "desc"; }' is not assignable to type 'OrderBy<Partial<Value<{ id: PrimaryKey<string>; tags: ManyOf<"tag", false>; price: () => number; name: () => string; description: () => string; slug: (wordCount?: number | undefined) => string; added: () => number; brand: OneOf<...>; itemType: () => string; imageUrl: () => string; }, { ...; }>>> | OrderBy<...>[] | u...'.
  Type '{ [x: string]: "asc" | "desc"; }' is not assignable to type 'undefined'.
...

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