def get_erc20_contract(w3: Web3, address=None):
    """
    Get ERC20 interface
    :param w3: Web3 instance
    :param address: address of the proxy contract
    :return: ERC 20 contract
    """
    return w3.eth.contract(address,
                           abi=ERC20_INTERFACE['abi'],
                           bytecode=ERC20_INTERFACE['bytecode'])
def get_erc20_contract(w3: Web3, address=None):
    """
    Get ERC20 interface
    :param w3: Web3 instance
    :param address: address of the proxy contract
    :return: ERC 20 contract
    """
    return w3.eth.contract(address,
                           abi=ERC20_INTERFACE['abi'],
                           bytecode=ERC20_INTERFACE['bytecode'])
def get_erc20_contract ( w3 : Web3 , address = None ) : return w3 . eth . contract ( address , abi = ERC20_INTERFACE [ 'abi' ] , bytecode = ERC20_INTERFACE [ 'bytecode' ] )
Get ERC20 interface
    :param w3: Web3 instance
    :param address: address of the proxy contract
    :return: ERC 20 contract
Get ERC20 interface : param w3 : Web3 instance : param address : address of the proxy contract : return : ERC 20 contract