import { DataTag, QueryKey, UseQueryOptions } from '@tanstack/react-query';
import { BetterFetchError, BetterFetchOption } from 'better-auth/client';
/**
 * Read-style Better Auth client method (params shape `{ query?, fetchOptions? }`).
 * Mutation-style endpoints use `AuthMutationFn` / `useAuthMutation` instead.
 */
export type AuthQueryFn<TData = unknown> = (params: {
    query?: Record<string, unknown>;
    fetchOptions?: BetterFetchOption;
}) => Promise<{
    data: TData;
}>;
export type AuthQueryFnData<TFn> = TFn extends AuthQueryFn<infer TData> ? TData : never;
/**
 * Final query key produced by {@link authQueryOptions}: the caller's prefix
 * followed by `params.query ?? null`.
 */
export type AuthQueryKey<TFn extends AuthQueryFn = AuthQueryFn, TPrefix extends QueryKey = QueryKey> = readonly [...TPrefix, NonNullable<Parameters<TFn>[0]>["query"] | null];
/**
 * Return type of {@link authQueryOptions}. Named so TypeScript emits
 * `DataTag<…>` by reference in the `.d.ts`, instead of the raw
 * `{ [dataTagSymbol]: … }` intersection — which triggers a declaration-emit
 * bug where `dataTagSymbol` isn't re-imported at the use site and silently
 * breaks `setQueryData`/`getQueryData` type inference at the consumer.
 */
export type AuthQueryOptions<TFn extends AuthQueryFn = AuthQueryFn, TPrefix extends QueryKey = QueryKey> = Omit<UseQueryOptions<AuthQueryFnData<TFn>, BetterFetchError, AuthQueryFnData<TFn>, AuthQueryKey<TFn, TPrefix>>, "queryKey"> & {
    queryKey: DataTag<AuthQueryKey<TFn, TPrefix>, AuthQueryFnData<TFn>, BetterFetchError>;
};
/**
 * Build `queryOptions` for a Better Auth endpoint.
 *
 * Injects React Query's `signal` and `throw: true` into `fetchOptions` so the
 * request is cancelled on unmount and errors surface as `BetterFetchError`
 * instead of `{ data, error }`.
 *
 * @param authFn - Better Auth client method (e.g. `authClient.getSession`).
 * @param queryKey - Scope prefix for the key. `params.query` is appended automatically.
 * @param params - Parameters forwarded to `authFn`.
 */
export declare function authQueryOptions<TFn extends AuthQueryFn, const TPrefix extends QueryKey>(authFn: TFn, queryKey: TPrefix, params?: Parameters<TFn>[0]): AuthQueryOptions<TFn, TPrefix>;