class_docstr: Tests for ProteinNet dataset.
class_docstr_tok: ["Tests","for","ProteinNet","dataset","."]
code: def setUpClass(cls):
      super().setUpClass()
      cls._all_thresholds = (
          protein_net_dataset_builder.Builder.THRESHOLDS
      )
      protein_net_dataset_builder.Builder.THRESHOLDS = [100]
  
imports: from tensorflow_datasets.datasets.protein_net import protein_net_dataset_builder
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling the ProteinNetTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types