import { useMutationState } from '@tanstack/react-query'

type MyData = { data: string[] }
type MyError = { code: number; message: string }
type MyVars = { id: number }

const result = useMutationState<
  MutationState<MyData, MyError, MyVars>
>({
  filters: { mutationKey: ['KEY'] },
  select: ({ state }) => state,
})

// Type '({ state }: Mutation<unknown, Error, unknown, unknown>) => MutationState<unknown, Error, unknown, unknown>' is not assignable to type '(mutation: Mutation<unknown, Error, unknown, unknown>) => MutationState<{ data: string[]; }, { code: number; message: string; }, { id: number; }, unknown>'.

select: (mutation: Mutation<MyData, MyError, MyVars>) => mutation.state

select: (mutation) =>
  mutation.state as MutationState<MyData, MyError, MyVars>