import type { ConfirmOptions, Connection, PublicKey, Signer, TransactionSignature } from '@solana/web3.js';
/**
 * Unwrap lamports to an account
 *
 * @param connection     Connection to use
 * @param payer          Payer of the transaction fees
 * @param source         Native source account
 * @param destination    Account receiving the lamports
 * @param owner          Owner of the source account
 * @param amount         Amount of lamports to unwrap
 * @param multiSigners   Signing accounts if `owner` is a multisig
 * @param confirmOptions Options for confirming the transaction
 * @param programId      SPL Token program account
 *
 * @return Signature of the confirmed transaction
 */
export declare function unwrapLamports(connection: Connection, payer: Signer, source: PublicKey, destination: PublicKey, owner: Signer | PublicKey, amount: bigint | null, multiSigners?: Signer[], confirmOptions?: ConfirmOptions, programId?: PublicKey): Promise<TransactionSignature>;
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