code: def full_sort_predict(self, interaction):
      item_seq = interaction[self.ITEM_SEQ]
      item_seq_len = interaction[self.ITEM_SEQ_LEN]
      seq_output = self.forward(item_seq, item_seq_len)
      test_items_emb = self.item_embedding.weight
      scores = torch.matmul(
          seq_output, test_items_emb.transpose(0, 1)
      )  # [B n_items]
      return scores
  
imports: import random
  import numpy
  import torch
  from torch import nn
  import torch.nn.functional
  import math
  import torch.nn.functional
  from recbole.model.abstract_recommender import SequentialRecommender
  from recbole.model.loss import BPRLoss
  from recbole.data.interaction import Interaction
label_desc: Use image node_id 15 for calling the FEARec obj's underlying member method code with example usage: obj.full_sort_predict(interaction) and returns: scores