Method eval

model: a FewShotREModel instance B: Batch size N: Num of classes for each batch K: Num of instances for each class in the support set Q: Num of instances for each class in the query set eval_iter: Num of iterations ckpt: Checkpoint path. Set a

(self,
            model,
            B, N, K, Q,
            eval_iter,
            na_rate=0,
            pair=False,
            ckpt=None)