import type { Program, Idl } from "@coral-xyz/anchor";
import { Keypair, PublicKey } from "@solana/web3.js";
import type { TransactionProofBuilder } from "../proofs/types.js";
import type { InputUTXO, SerializedUTXO } from "../notes/model.js";
import { MerkleTree } from "../merkle.js";
import { type NoteCiphers } from "../compactNote.js";
export type TransferResult = {
    /** Output UTXOs created by the transfer */
    outputUTXOs: [SerializedUTXO, SerializedUTXO];
    /** Leaf indices where the UTXOs were inserted */
    leafIndices: [number, number];
    /** New Merkle root after insertion */
    root: Uint8Array;
};
/**
 * Execute a private transfer within the pool.
 *
 * For transfers, the publicAmount is 0 (no funds enter or leave the pool).
 * Input amounts must equal output amounts.
 *
 * @param inputUTXOs - The UTXOs being spent
 * @param outputPubkeys - UTXO public keys for the recipients
 * @param outputAmounts - Amounts for each output (must sum to input total)
 * @param inputTreeId - The tree ID where input UTXOs are located
 * @param outputTreeId - The tree ID where output commitments will be inserted
 */
export declare function privateTransfer<T extends Idl>(params: {
    program: Program<T>;
    relayer: Keypair;
    mintAddress: PublicKey;
    inputUTXOs: [InputUTXO, InputUTXO];
    outputPubkeys: [bigint, bigint];
    outputAmounts: [bigint, bigint];
    root: Uint8Array;
    inputTreeId: number;
    outputTreeId: number;
    tree: MerkleTree;
    proofBuilder: TransactionProofBuilder;
    /** Must be zero: the program rejects fees on publicAmount=0 transfers. */
    fee?: bigint;
    deadline?: bigint;
    /** Public recipient account committed in ExtData (no funds are sent to it). */
    externalRecipient?: PublicKey;
    /** Wallet keys used to encrypt output notes for on-chain recovery. */
    noteRecipientWallets?: [
        PublicKey | Uint8Array | null,
        PublicKey | Uint8Array | null
    ];
    /** Verified X25519 view-v2 targets; each entry overrides its wallet target. */
    noteRecipientViewKeys?: [Uint8Array | null, Uint8Array | null];
    /** Prebuilt note ciphers. Takes precedence over noteRecipientWallets. */
    noteCiphers?: NoteCiphers | null;
}): Promise<TransferResult>;