class_docstr: Test case of valid embedding interface 
docstr: target: test embedding for normal case
  method: embedding with concurrent multi-processes
  expected: return embeddings
docstr_tok: ["target",":","test","embedding","for","normal","case","method",":","embedding","with","concurrent","multi-processes","expected",":","return","embeddings"]
code: def test_embedding_concurrent_multi_threads(
      self, pipeline_name, embedding_size
  ):
      """
      target: test embedding for normal case
      method: embedding with concurrent multi-processes
      expected: return embeddings
      """
      threads_num = 10
      threads = []
  
      def embedding():
          embedding_pipeline = pipeline(pipeline_name)
          embedding = embedding_pipeline(
              data_path + "towhee_test_audio_0.wav"
          )
          assert embedding[0][0][0].size == embedding_size
  
      for i in range(threads_num):
          t = threading.Thread(target=embedding)
          threads.append(t)
          t.start()
          time.sleep(0.2)
      for t in threads:
          t.join()
  
      return True
  
imports: import numbers
  import sys
  import time
  import threading
  import numpy
  from towhee import AutoPipes, AutoConfig
  from common import common_func
label_desc: Use image node_id 6 for calling the TestAudioEmbeddingValid obj's underlying member method code with example usage: obj.test_embedding_concurrent_multi_threads(pipeline_name, embedding_size) and returns: True