how to fix it?

AttributeError Traceback (most recent call last)
Cell In[7], line 6
1 mf = [[['gaussmf',{'mean':0.,'sigma':1.}],['gaussmf',{'mean':-1.,'sigma':2.}],['gaussmf',{'mean':-4.,'sigma':10.}],['gaussmf',{'mean':-7.,'sigma':7.}]],
2 [['gaussmf',{'mean':1.,'sigma':2.}],['gaussmf',{'mean':2.,'sigma':3.}],['gaussmf',{'mean':-2.,'sigma':10.}],['gaussmf',{'mean':-10.5,'sigma':5.}]]]
5 mfc = anfis.membershipfunction.MemFuncs(mf)
----> 6 anf = anfis.ANFIS(X, Y, mfc)
7 anf.trainHybridJangOffLine(epochs=20)
9 print (round(anf.consequents[-1][0],6))

AttributeError: module 'anfis' has no attribute 'ANFIS'