Error with .cardinality(algorithm='sae') for elliptic curve

edit

Hello please i have a problem. I have already defined an elliptic curve over a ring Zn and i want to compute its cardinality but i can not use .cardinality(algorithm='sae'). Thank you.

Here is the programme that i want to implement.

def cardin(n,A,B)
      Z = Zmod(n) # n is not a prime then Z is a ring
      E = EllipticCurve(Z,(A,B))
      return E.cardinality(algorithm='sae')  "sae=Schoof Atkin"

TypeError: cardinality() got an unexpected keyword argument 'algorithm'