def __init__(self, **kwargs):
    self.chain = [ArgsCredentials('client_id', 'client_secret', **kwargs), ArgsCredentials('PINGBOARD_CLIENT_ID', 'PINGBOARD_CLIENT_SECRET', **os.environ), FileCredentials(kwargs.get('credentials_file'))]
def __init__(self, **kwargs):
    self.chain = [ArgsCredentials('client_id', 'client_secret', **kwargs), ArgsCredentials('PINGBOARD_CLIENT_ID', 'PINGBOARD_CLIENT_SECRET', **os.environ), FileCredentials(kwargs.get('credentials_file'))]