Main entry point for a request-response process.

def as_view(cls, **initkwargs):
        """
        Main entry point for a request-response process.
        """
        # sanitize keyword arguments
        for key in initkwargs:
            if key in cls.http_method_names:
                raise TypeError("You tried to pass in the %s method name as a "
                                "keyword argument to %s(). Don't do that."
                                % (key, cls.__name__))
            if not hasattr(cls, key):
                raise TypeError("%s() received an invalid keyword %r. as_view "
                                "only accepts arguments that are already "
                                "attributes of the class." % (
                                    cls.__name__, key))

        def view(request, *args, **kwargs):
            self = cls(**initkwargs)
            if hasattr(self, 'get') and not hasattr(self, 'head'):
                self.head = self.get
            self.request = request
            self.args = args
            self.kwargs = kwargs
            self.authed_view = initkwargs.get('authed_view')
            self.authed_view_kwargs = initkwargs.get('authed_view_kwargs')
            self.anonymous_view = initkwargs.get('anonymous_view')
            self.anonymous_view_kwargs = initkwargs.get(
                'anonymous_view_kwargs')
            return self.dispatch(request, *args, **kwargs)
        # take name and docstring from class
        update_wrapper(view, cls, updated=())
        # and possible attributes set by decorators
        # like csrf_exempt from dispatch
        update_wrapper(view, cls.dispatch, assigned=())
        return view