code: def check_errors(wsgi_errors):
      for attr in ["flush", "write", "writelines"]:
          assert_(
              hasattr(wsgi_errors, attr),
              "wsgi.errors (%r) doesn't have the attribute %s"
              % (wsgi_errors, attr),
          )
  
imports: import re
  import sys
  import warnings
label_desc: Use image node_id 6 for calling a global function with example usage: check_errors(wsgi_errors) without return types