code: def handle_stacktraces(test_results):
      # These files should follow the following architecture:
      # === FAILURES ===
      # <path>:<line>: Error ...
      # <path>:<line>: Error ...
      # <empty line>
  
      total_stacktraces = test_results.split("\n")[1:-1]
      stacktraces = []
      for stacktrace in total_stacktraces:
          try:
              line = stacktrace[: stacktrace.index(" ")].split(":")[-2]
              error_message = stacktrace[stacktrace.index(" ") :]
  
              stacktraces.append(f"(line {line}) {error_message}")
          except Exception:
              stacktraces.append("Cannot retrieve error message.")
  
      return stacktraces
  
imports: import ast
  import collections
  import functools
  import json
  import operator
  import os
  import re
  import sys
  import time
  from typing import Dict, List, Optional, Union
  import requests
  from get_ci_error_statistics import get_job_links
  from get_previous_daily_ci import get_last_daily_ci_reports
  from slack_sdk import WebClient
label_desc: Use image node_id 2 for calling a global function with example usage: handle_stacktraces(test_results) and returns: stacktraces