/**
 * Remediation hints for withdrawal-queue errors.
 *
 * Leaf module (depends on nothing in the adapter) so both `queue.actions.ts`
 * and `vault.actions.ts` can use it: `queue.actions.ts` already imports from
 * `vault.actions.ts`, so defining the hints in either file and importing them
 * from the other would create a circular dependency.
 */
/**
 * The sentence to append for a queue error the caller can act on.
 *
 * @param e - The error thrown by an Anchor `.rpc()` call (any value).
 * @returns A sentence starting with a space, or `''` when the error is not a
 *   queue error with a known remedy.
 */
export declare function queueHint(e: unknown): string;
/**
 * The hint for a direct vault redeem refused because the vault routes exits
 * through its withdrawal queue (`WithdrawalQueueRequired`, vault error 6021).
 *
 * Only this one queue hint applies to a direct redeem: the others (cooldown,
 * claim liquidity, ...) describe the claim of a queued request, and e.g. the
 * `NotEnoughLiquidity` claim hint ("the request stays pending") would be wrong
 * for a direct redeem, which leaves no request behind.
 *
 * @param e - The error thrown by the redeem `.rpc()` call (any value).
 * @returns The queue-redeem instruction sentence (leading space), or `''`.
 */
export declare function redeemQueueHint(e: unknown): string;