class_docstr: Test Nodes
code: def test_normal(self):
      pipe = RuntimePipeline(self.dag)
      nums = list(range(3000))
      scalar_num = 4
      ret = pipe(scalar_num, nums)
      self.assertEqual(ret.size, 1)
      self.assertEqual(
          ret.get_dict(),
          {
              "sum1": sum(range(3000)) + scalar_num * 3000,
              "sum2": sum(range(2501, 3000)),
          },
      )
  
file_path: towhee/tests/unittests/runtime/test_nodes.py
imports: import unittest
  import copy
  import threading
  from towhee.runtime.runtime_pipeline import RuntimePipeline
  from towhee.datacollection.data_collection import DataCollection
label_desc: Use image node_id 1 for calling the TestLargeDataConcat obj's underlying member method code with example usage: obj.test_normal() without return types