TypeError: CredentialsManager.add() missing 1 required positional argument: 'self'

[addyuchiha]

i am using developmet branch this is the code:

from pyVoIP.VoIP.phone import PhoneStatus, VoIPPhone
from pyVoIP.credentials import CredentialsManager

user = ''
port = 5060
pas = ''
servera = ''

Credentials_manager = CredentialsManager
Credentials_manager.add(username=user,password=pas,server=servera)

if __name__ == "__main__":
    phone=VoIPPhone(server='sip.plusnet.de', port=5060, user='fo342155ip301773_00', credentials_manager=Credentials_manager)
    phone.start()
    while 1==1:
        i = input(">")
        if i=='a':
            print(phone.get_status())
        if i=='s':
            phone.stop
            break
        elif i=='d':
            x=input(">>")
            phone.call(x)

and this is the error:

Traceback (most recent call last):
  File "/home/addy/Desktop/x/telephone/pyVoIP/x.py", line 10, in <module>
    Credentials_manager.add(username=user,password=pas,server=servera)
TypeError: CredentialsManager.add() missing 1 required positional argument: 'self'

any help regarding solving it will be helpfull,
thanks

[tayler6000]

You never initialized the CredentialManager on line 9 of your code. Please replace Credentials_manager = CredentialsManager with Credentials_manager = CredentialsManager(). Also, you'll want to replace phone.stop with phone.stop() on line 20.