import type { Address, Account, ControlFlowOptions, BaseUnits } from '../../../types.js';
import type { Chain } from '../index.js';
import type { Abi, Client, FeeValuesEIP1559 } from 'viem';
/**
 * Parameters for the {@link exactInputSingle} function.
 */
export type ExactInputSingleParams = {
    /** The address of the token or chain contract, if applicable. */
    tokenIn: Address | {
        address: Address;
        abi?: Abi;
    };
    /** The amount to be transferred. Can be specified directly or as a function that returns a promise resolving to the amount. */
    amountIn: BaseUnits;
    /** The address of the token or chain contract, if applicable. */
    tokenOut: Address | {
        address: Address;
        abi?: Abi;
    };
    /** The amount to be transferred. Can be specified directly or as a function that returns a promise resolving to the amount. */
    amountOutMinimum?: BaseUnits;
    /** Fee pool */
    fee?: number;
    /** Used to set the limit for the price the swap will push the pool to */
    sqrtPriceLimitX96?: bigint;
    /** The recipient's address or account. */
    account: Address | Account;
    /** Includes the approve() step in the transaction. */
    withApprove?: boolean;
    /** The gas limit for the transaction. */
    gas?: bigint;
    /** The fee values for the transaction. Can be specified directly or as a function that returns a promise resolving to the fee values. */
    fees?: FeeValuesEIP1559;
    /** The blockchain network on which the transaction will be executed. */
    chain?: Chain;
};
/**
 * Executes an exact input single swap on Uniswap V3.
 *
 * @param client - The client instance to use for the operation.
 * @param params - Parameters for the exact input single swap operation.
 * @returns A promise that resolves to the transaction hash of the executed swap.
 * @throws {UnsupportedChainError} If the specified chain is not supported.
 * @example
 * ```typescript
 * const txHash = await client.exactInputSingle({
 *   tokenIn: '0xfff9976782d46cc05630d1f6ebab18b2324d6b14', // WETH
 *   amountIn: 1000000n, // 1 WETH
 *   tokenOut: '0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238', // USDC
 *   account: '0xYourAccountAddress', // Your account address
 *   chain: ETH_SEPOLIA, // Ethereum Sepolia
 * });
 * // => '0xTransactionHash'
 * ```
 */
export declare function exactInputSingle(client: Client, params: ExactInputSingleParams & ControlFlowOptions): Promise<`0x${string}`>;