def __init__(self, email, password, source):
        self.email = email
        self.password = password
        self.source = source
Accept keys based on a dict of keys
dataset/ETHPy150Open yoavaviram/python-google-spreadsheet/google_spreadsheet/api.py/SpreadsheetAPI.__init__--crossover with--dataset/ETHPy150Open saltstack/salt/salt/wheel/key.py/accept_dict