class_docstr: Evaluation Dataset class.
  Parameters
  ----------
  triples: The triples used for evaluating the model
  num_ent: Number of entities in the knowledge graph
  
  Returns
  -------
  An evaluation Dataset class instance used by DataLoader for model evaluation
code: def __init__(self, triples, num_ent):
      self.triples = triples
      self.num_ent = num_ent
  
imports: from collections import defaultdict
  import dgl
  import numpy
  import torch
  from ordered_set import OrderedSet
  from torch.utils.data import DataLoader, Dataset
label_desc: Use image node_id 1 to create a new TestDataset object from inherited base classes: Dataset with example: obj = TestDataset(triples, num_ent)