import { Address, IAccountMeta, IAccountSignerMeta, IInstruction, TransactionSigner } from "@solana/kit";
import BN from "bn.js";
export interface RewardUserOnceArgs {
    rewardIndex: BN;
    amount: BN;
}
export interface RewardUserOnceAccounts {
    farmAdmin: TransactionSigner;
    farmState: Address;
    userState: Address;
}
export declare const layout: import("buffer-layout").Layout<RewardUserOnceArgs>;
export declare function rewardUserOnce(args: RewardUserOnceArgs, accounts: RewardUserOnceAccounts, remainingAccounts?: Array<IAccountMeta | IAccountSignerMeta>, programAddress?: Address): IInstruction<string, readonly (import("@solana/kit").IAccountLookupMeta<string, string> | IAccountMeta<string>)[]>;
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