import { TransactionBuilder, PayloadSigner } from './types';
/**
 * Signs the `payload` using an ECDSA private key.
 *
 * @param payload The payload that needs to be signed.
 * @param secret The ECDSA private key.
 *
 * @example Sign EIP712 transaction hash.
 *
 * import { EIP712Signer, types, utils } from "zksync-ethers";
 *
 * const PRIVATE_KEY = "<PRIVATE_KEY>";
 *
 * const tx: types.TransactionRequest = {
 *   chainId: 270,
 *   from: ADDRESS,
 *   to: "<RECEIVER>",
 *   value: 7_000_000_000,
 * };
 *
 * const txHash = EIP712Signer.getSignedDigest(tx);
 * const result = await utils.signPayloadWithECDSA(txHash, PRIVATE_KEY);
 *
 * @example Sign message hash.
 *
 * import { utils } from "zksync-ethers";
 * import { hashMessage } from "ethers";
 *
 * const PRIVATE_KEY = "<PRIVATE_KEY>";
 *
 * const message = 'Hello World!';
 * const messageHash = hashMessage(message);
 *
 * const result = await utils.signPayloadWithECDSA(messageHash, PRIVATE_KEY);
 *
 * @example Sign typed data hash.
 *
 * import { utils } from "zksync-ethers";
 * import { TypedDataEncoder } from "ethers";
 *
 * const PRIVATE_KEY = "<PRIVATE_KEY>";
 *
 * const typedDataHash = TypedDataEncoder.hash(
 *   {name: 'Example', version: '1', chainId: 270},
 *   {
 *     Person: [
 *       {name: 'name', type: 'string'},
 *       {name: 'age', type: 'uint8'},
 *     ],
 *   },
 *   {name: 'John', age: 30}
 * );
 * const result = await utils.signPayloadWithECDSA(typedDataHash, PRIVATE_KEY);
 */
export declare const signPayloadWithECDSA: PayloadSigner;
/**
 * Signs the `payload` using multiple ECDSA private keys.
 * The signature is generated by concatenating signatures created by signing with each key individually.
 * The length of the resulting signature should be `secrets.length * 65 + 2`.
 *
 * @param payload The payload that needs to be signed.
 * @param secret The list of the ECDSA private keys.
 *
 * @throws {Error} If the `secret` is not an array of at least two elements.
 *
 * @example Sign EIP712 transaction hash.
 *
 * import { EIP712Signer, types, utils } from "zksync-ethers";
 *
 * const PRIVATE_KEY1 = "<PRIVATE_KEY1>";
 * const PRIVATE_KEY2 = "<PRIVATE_KEY2>";
 *
 * const tx: types.TransactionRequest = {
 *   chainId: 270,
 *   from: ADDRESS,
 *   to: "<RECEIVER>",
 *   value: 7_000_000_000,
 * };
 *
 * const txHash = EIP712Signer.getSignedDigest(tx);
 * const result = await utils.signPayloadWithMultipleECDSA(typedDataHash, [PRIVATE_KEY1, PRIVATE_KEY2]);
 *
 * @example Sign message hash.
 *
 * import { utils } from "zksync-ethers";
 * import { hashMessage } from "ethers";
 *
 * const PRIVATE_KEY1 = "<PRIVATE_KEY1>";
 * const PRIVATE_KEY2 = "<PRIVATE_KEY2>";
 *
 * const message = 'Hello World!';
 * const messageHash = hashMessage(message);
 *
 * const result = await utils.signPayloadWithMultipleECDSA(typedDataHash, [PRIVATE_KEY1, PRIVATE_KEY2]);
 *
 * @example Sign typed data hash.
 *
 * import { utils } from "zksync-ethers";
 * import { TypedDataEncoder } from "ethers";
 *
 * const PRIVATE_KEY1 = "<PRIVATE_KEY1>";
 * const PRIVATE_KEY2 = "<PRIVATE_KEY2>";
 *
 * const typedDataHash = TypedDataEncoder.hash(
 *   {name: 'Example', version: '1', chainId: 270},
 *   {
 *     Person: [
 *       {name: 'name', type: 'string'},
 *       {name: 'age', type: 'uint8'},
 *     ],
 *   },
 *   {name: 'John', age: 30}
 * );
 * const result = await utils.signPayloadWithMultipleECDSA(typedDataHash, [PRIVATE_KEY1, PRIVATE_KEY2]);
 */
export declare const signPayloadWithMultipleECDSA: PayloadSigner;
/**
 * Populates missing properties meant for signing using an ECDSA private key:
 *
 * - Populates `from` using the address derived from the ECDSA private key.
 * - Populates `nonce` via `provider.getTransactionCount(tx.from, "pending")`.
 * - Populates `gasLimit` via `provider.estimateGas(tx)`. If `tx.from` is not EOA, the estimation is done with address
 * derived from the ECDSA private key.
 * - Populates `chainId` via `provider.getNetwork()`.
 * - Populates `type` with `utils.EIP712_TX_TYPE`.
 * - Populates `value` by converting to `bigint` if set, otherwise to `0n`.
 * - Populates `data` with `0x`.
 * - Populates `customData` with `{factoryDeps=[], gasPerPubdata=utils.DEFAULT_GAS_PER_PUBDATA_LIMIT}`.
 *
 * @param tx The transaction that needs to be populated.
 * @param [secret] The ECDSA private key used for populating the transaction.
 * @param [provider] The provider is used to fetch data from the network if it is required for signing.
 *
 * @throws {Error} Requires `provider` to be set.
 *
 * @example
 *
 * import { Provider, types, utils } from "zksync-ethers";
 *
 * const PRIVATE_KEY = "<PRIVATE_KEY>";
 *
 * const provider = Provider.getDefaultProvider(types.Network.Sepolia);
 *
 * const populatedTx = await utils.populateTransactionECDSA(
 *   {
 *     chainId: 270,
 *     to: "<RECEIVER>",
 *     value: 7_000_000_000,
 *   },
 *   PRIVATE_KEY,
 *   provider
 * );
 */
export declare const populateTransactionECDSA: TransactionBuilder;
/**
 * Populates missing properties meant for signing using multiple ECDSA private keys.
 * It uses {@link populateTransactionECDSA}, where the address of the first ECDSA key is set as the `secret` argument.
 *
 * @param tx The transaction that needs to be populated.
 * @param [secret] The list of the ECDSA private keys used for populating the transaction.
 * @param [provider] The provider is used to fetch data from the network if it is required for signing.
 *
 * @throws {Error} The `secret` must be an array of at least two elements.
 *
 * @example
 *
 * import { Provider, types, utils } from "zksync-ethers";
 *
 * const PRIVATE_KEY1 = "<PRIVATE_KEY1>";
 * const PRIVATE_KEY2 = "<PRIVATE_KEY2>";
 *
 * const provider = Provider.getDefaultProvider(types.Network.Sepolia);
 *
 * const populatedTx = await utils.populateTransactionMultisigECDSA(
 *   {
 *     chainId: 270,
 *     to: "<RECEIVER>",
 *     value: 7_000_000_000,
 *   },
 *   [PRIVATE_KEY1, PRIVATE_KEY2],
 *   provider
 * );
 */
export declare const populateTransactionMultisigECDSA: TransactionBuilder;