def __init__(self, identifier, password, service_url, second_password=None, api_code=None):
self.identifier = identifier<EOL>self.password = password<EOL>self.service_url = service_url<EOL>self.second_password = second_password<EOL>self.api_code = api_code<EOL>
Initializes a wallet object.

        :param str identifier: wallet identifier (GUID)
        :param str password : decryption password
        :param str service_url : URL to an instance of service-my-wallet-v3 (with trailing slash)
        :param str second_password: second password (optional)
        :param str api_code: Blockchain.info API code