code: def test_str(self):
      snapshot_entity = Snapshot(self.input_dict)
      for k, v in self.input_dict.items():
          if k != "model_id":
              assert str(v) in str(snapshot_entity)
  
file_path: datmo/datmo/core/entity/tests/test_snapshot.py
imports: from datmo.core.entity.snapshot import Snapshot
label_desc: Use image node_id 5 for calling the TestSnapshot obj's underlying member method code with example usage: obj.test_str() without return types