react-query/packages/vue-query/src/queryOptions.ts

import type { DataTag, DefaultError, QueryKey } from '@tanstack/query-core'
import type {
  DefinedInitialQueryOptions,
  UndefinedInitialQueryOptions,
} from './useQuery'

export function queryOptions<
  TQueryFnData = unknown,
  TError = DefaultError,
  TData = TQueryFnData,
  TQueryKey extends QueryKey = QueryKey,
>(
  options: DefinedInitialQueryOptions<TQueryFnData, TError, TData, TQueryKey>,
): DefinedInitialQueryOptions<TQueryFnData, TError, TData, TQueryKey> & {
  queryKey: DataTag<TQueryKey, TQueryFnData, TError>
}

export function queryOptions<
  TQueryFnData = unknown,
  TError = DefaultError,
  TData = TQueryFnData,
  TQueryKey extends QueryKey = QueryKey,
>(
  options: UndefinedInitialQueryOptions<TQueryFnData, TError, TData, TQueryKey>,
): UndefinedInitialQueryOptions<TQueryFnData, TError, TData, TQueryKey> & {
  queryKey: DataTag<TQueryKey, TQueryFnData, TError>
}

export function queryOptions(options: unknown) {
  return options
}