import type { RpcCaller } from "@cratestack/ts-types";
import type { QueryKey } from "@tanstack/query-core";
export type { RpcCaller } from "@cratestack/ts-types";
/** The `[opId, input]` tuple every helper below keys its query/mutation
 *  on — exported so callers can `queryClient.invalidateQueries({ queryKey: rpcQueryKey(opId, input) })`
 *  without re-deriving the same shape by hand. */
export declare function rpcQueryKey(opId: string, input?: unknown): QueryKey;
/** Builds a `{ queryKey, queryFn }` pair for `useQuery` (or its
 *  vue-query/solid-query/svelte-query equivalents — all built on
 *  `@tanstack/query-core`) from a single unary RPC call. Framework-
 *  agnostic: pass the result straight through, or spread it alongside
 *  your own `staleTime`/`enabled`/etc. */
export declare function rpcQueryOptions<I, O>(client: RpcCaller, opId: string, input: I): {
    queryKey: QueryKey;
    queryFn: (context: {
        signal: AbortSignal;
    }) => Promise<O>;
};
/** Builds a `{ mutationKey, mutationFn }` pair for `useMutation`. The
 *  input is supplied at call time (`mutate(input)`), not here — mirrors
 *  the generated `useCreateXMutation`/`useUpdateXMutation` hooks'
 *  shape. */
export declare function rpcMutationOptions<I, O>(client: RpcCaller, opId: string): {
    mutationKey: QueryKey;
    mutationFn: (input: I) => Promise<O>;
};
/** True when `error` is a `CratestackRpcError`-shaped value (or a
 *  decoded `RpcErrorBody`) whose `code` matches — structural, not an
 *  `instanceof` check, since `CratestackRpcError` is a per-project
 *  generated class with no shared import path. Useful in
 *  `retry`/`throwOnError` callbacks, e.g. never retrying a
 *  `"not_found"`. */
export declare function isRpcErrorCode(error: unknown, code: string): boolean;
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