class_docstr: Test case of valid embedding interface 
docstr: target: test embedding for normal case
  method:  embedding images for multiple times
  expected: return embeddings
docstr_tok: ["target",":","test","embedding","for","normal","case","method",":","embedding","images","for","multiple","times","expected",":","return","embeddings"]
code: def test_embedding_images_multiple_times(
      self, pipeline_model, embedding_size
  ):
      """
      target: test embedding for normal case
      method:  embedding images for multiple times
      expected: return embeddings
      """
      nums = 2
      times = 10
      emb_conf = AutoConfig.load_config(pipeline_name)
      emb_conf.model = pipeline_model
      emb_pipe = AutoPipes.pipeline(pipeline_name, emb_conf)
      for i in range(times):
          embeddings = []
          for j in range(nums):
              embedding = (
                  emb_pipe(data_path + "towhee_test_image%d.jpg" % j)
                  .to_list()[0][0]
                  .tolist()
              )
              embeddings.append(embedding)
              assert len(embedding) == embedding_size
          assert embeddings[0] is not embeddings[1]
          print("embedding images for %d round" % (i + 1))
  
      return True
  
imports: import sys
  import time
  import threading
  import numpy
  from towhee import AutoPipes, AutoConfig
  from common import common_func
label_desc: Use image node_id 5 for calling the TestImageEmbeddingValid obj's underlying member method code with example usage: obj.test_embedding_images_multiple_times(pipeline_model, embedding_size) and returns: True