Variables not defined

[gkiril]

Some variables in CaRe_main.py are not defined. For instance, in this code snippet:

if self.args.CN=='LAN':
   self.cn = CaRe(self.args.nfeats, self.args.nfeats)
elif self.args.CN=='GCN':
   self.cn = CaReGCN(self.args.nfeats, self.args.nfeats)
else:
   self.cn = CaReGAT(self.args.nfeats, self.args.nfeats//self.args.nheads, heads=self.args.nheads, dropout=self.args.dropout)

the variables CaRe, CaReGCN and CaReGAT are not defined anywhere in the code, which leads to the exception NameError:

Traceback (most recent call last):
  File "CaRe_main.py", line 237, in <module>
    main(args)
  File "CaRe_main.py", line 114, in main
    model = ConvEParam(args,data.embed_matrix,data.rel2word)
  File "CaRe_main.py", line 23, in __init__
    self.cn = CaRe(self.args.nfeats, self.args.nfeats)
NameError: name 'CaRe' is not defined

How can this be solved? Is it possible that parts of the code are actually not available on this repo?