code: def test_assistant_retrieval():
      """
      Test function to check if the GPTAssistantAgent can retrieve the same assistant
      """
  
      name = "For test_assistant_retrieval"
  
      function_1_schema = {
          "name": "call_function_1",
          "parameters": {
              "type": "object",
              "properties": {},
              "required": [],
          },
          "description": "This is a test function 1",
      }
      function_2_schema = {
          "name": "call_function_1",
          "parameters": {
              "type": "object",
              "properties": {},
              "required": [],
          },
          "description": "This is a test function 2",
      }
  
      openai_client = OpenAIWrapper(config_list=config_list)._clients[0]
      current_file_path = os.path.abspath(__file__)
      file_1 = openai_client.files.create(
          file=open(current_file_path, "rb"), purpose="assistants"
      )
      file_2 = openai_client.files.create(
          file=open(current_file_path, "rb"), purpose="assistants"
      )
  
      all_llm_config = {
          "tools": [
              {"type": "function", "function": function_1_schema},
              {"type": "function", "function": function_2_schema},
              {"type": "retrieval"},
              {"type": "code_interpreter"},
          ],
          "file_ids": [file_1.id, file_2.id],
          "config_list": config_list,
      }
  
      name = "For test_gpt_assistant_chat"
  
      assistant_first = GPTAssistantAgent(
          name,
          instructions="This is a test",
          llm_config=all_llm_config,
      )
      candidate_first = retrieve_assistants_by_name(
          assistant_first.openai_client, name
      )
  
      assistant_second = GPTAssistantAgent(
          name,
          instructions="This is a test",
          llm_config=all_llm_config,
      )
      candidate_second = retrieve_assistants_by_name(
          assistant_second.openai_client, name
      )
  
      try:
          assistant_first.delete_assistant()
          assistant_second.delete_assistant()
      except openai.NotFoundError:
          # Not found error is expected because the same assistant can not be deleted twice
          pass
  
      openai_client.files.delete(file_1.id)
      openai_client.files.delete(file_2.id)
  
      assert candidate_first == candidate_second
      assert len(candidate_first) == 1
  
      candidates = retrieve_assistants_by_name(openai_client, name)
      assert len(candidates) == 0
  
file_path: autogen/test/agentchat/contrib/test_gpt_assistant.py
imports: import pytest
  import os
  import sys
  import autogen
  from autogen import OpenAIWrapper
  from conftest import skip_openai
  from test_assistant_agent import KEY_LOC, OAI_CONFIG_LIST
label_desc: Use image node_id 7 for calling a global function with example usage: test_assistant_retrieval() without return types