/**
 * @purpose Simplified closeRental instruction wrapper
 *
 * Thin convenience wrapper around Codama-generated closeRental instruction.
 * Closes a completed rental and returns the fleet to the owner.
 */
import { type Address } from '@solana/kit';
import { type SdkConfig } from '../utils/config';
import { type UniversalSigner } from '../utils/signer';
import { prepareInstructions } from '../utils/instructions';
/**
 * Parameters for closing a rental
 */
export interface CloseRentalParams {
    /**
     * Payer for the transaction (usually the owner)
     * Accepts string address, web3.js Keypair, or @solana/kit signer
     */
    payer: UniversalSigner;
    /**
     * Contract address to close the rental from
     */
    contract: Address | string;
    /**
     * Borrower address (optional)
     * If not provided, automatically fetched from the active rental state.
     * Falls back to payer if rental state doesn't exist.
     */
    borrower?: Address | string;
    /**
     * Sets compute units to allocate for the transaction.
     * @example 400000
     */
    computeUnits?: number;
}
/**
 * Finalize a completed rental and return the fleet to the owner.
 *
 * @param params - Rental closure parameters (payer, contract)
 * @param config - Optional SDK configuration overrides
 * @returns Kit instruction (or web3.js if PublicKey in config)
 *
 * @example
 * ```typescript
 * const ix = await closeRental({
 *   payer: ownerWallet,
 *   contract: contractAddress
 * });
 * ```
 */
export declare function closeRental(params: CloseRentalParams, config?: Partial<SdkConfig>): Promise<ReturnType<typeof prepareInstructions>>;
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