import { ethers } from 'ethers';
/**
 * Returns Orca related contract instance
 * @param contractName
 * @param signer
 * @returns
 */
export declare function getMetropolisContract(contractName: string, signer: ethers.Signer): ethers.Contract;
export declare function getGnosisSafeContract(safeAddress: string, signer: ethers.Signer): ethers.Contract;
/**
 * Checks to see if an address is valid (checksum or not)
 * @param address
 * @returns
 */
export declare function checkAddress(address: string): string;
/**
 * Handles ethers errors, as they have non-standard error formats.
 * @param error
 */
export declare const handleEthersError: (error: any) => never;
/**
 * Given contracts that we support, returns the encoded function data
 * @param contractName Name of contract, i.e., "ERC20". You can also use "IERC20" when relevant
 * @param functionName Name of function as it appears on the ABI, i.e., 'transfer'
 * @param args Args of function in an array.
 * @returns
 */
export declare function encodeFunctionData(contractName: string, functionName: string, args: Array<any>): string;
/**
 * Signs a message using ethers wallet and a local private key.
 * @param contractTransactionHash - Generated safe's transaction hash in the format of 0x...
 * @param signer
 * @returns Signed message based on private key.
 */
export declare function signMessage(contractTransactionHash: string, signer: ethers.Signer): Promise<string>;
/**
 * Gets the previous module from a Gnosis safe
 * @param safe - Safe to scan through
 * @param module - Module you're looking for
 * @param newController - Optional, new controller you are trying to add. Checks to see if module is already on the safe.
 * @returns
 */
export declare function getPreviousModule(safe: any, module: any, newController?: string): Promise<any>;
/**
 * Returns ethers contract based on name
 * @param contractName
 * @param signer
 * @returns
 */
export declare function getContract(contractName: string, signer: any): ethers.Contract;
/**
 * Determines if an array of pods are on the same controller version
 * @param pods - an array of pod controller versions
 * @returns - a boolean value stating if all pods are on the same version
 */
export declare function getIsSameVersion(podControllerValues: any): any;
/**
 * Determines if an address is or isn't a member of an array of pods
 * @param pods - an array of pods
 * @param address - a valid address
 * @returns - a boolean value stating if a user is a member of all pods
 */
export declare function isPodMember(pods: any, address: any): Promise<boolean>;