class_docstr: Manage the invocation of a WSGI application
class_docstr_tok: ["Manage","the","invocation","of","a","WSGI","application"]
docstr: True if 'self.result' is an instance of 'self.wsgi_file_wrapper'
docstr_tok: ["True","if","'self.result","'","is","an","instance","of","'self.wsgi_file_wrapper","'"]
code: def result_is_file(self):
      """True if 'self.result' is an instance of 'self.wsgi_file_wrapper'"""
      wrapper = self.wsgi_file_wrapper
      return wrapper is not None and isinstance(self.result, wrapper)
  
imports: from .util import FileWrapper, guess_scheme, is_hop_by_hop
  from .headers import Headers
  import sys, os, time
label_desc: Use image node_id 15 for calling the BaseHandler obj's underlying member method code with example usage: obj.result_is_file() and returns: unknown