parameters: (self, request)
return_statement: return request.user.username
docstring: Returns the username as the identifier.
  
          :param request: Django request object (Required)
          :type request: :class:`django.http.HttpRequest`
          :returns: str
docstring_summary: Returns the username as the identifier.
docstring_tokens: Returns the username as the identifier .
function: def get_identifier(self, request):
          """
          Returns the username as the identifier.
  
          :param request: Django request object (Required)
          :type request: :class:`django.http.HttpRequest`
          :returns: str
          """
  
          return request.user.username
function_tokens: def get_identifier ( self , request ) : return request . user . username