code: def setup_class(self):
      self.input_dict = {
          "model_id": "my_model",
          "message": "my message",
          "code_id": "code_id",
          "environment_id": "environment_id",
          "file_collection_id": "file_collection_id",
          "config": {"hyperparameter": 0.8},
          "stats": {"performance": 0.98},
      }
  
file_path: datmo/datmo/core/entity/tests/test_snapshot.py
imports: from datmo.core.entity.snapshot import Snapshot
label_desc: Use image node_id 1 for calling the TestSnapshot obj's underlying member method code with example usage: obj.setup_class() without return types