Loads a form and validates it (unless specified).
        If the form referenced has not been loaded, an attempt to create a form
        object using the information in the template will be made.

def form(self, obj=None, form=None, name=None, template=None, var_name=None, validate_on_submit=True,\
        exit_on_failure=True, csrf_enabled=None):
        """Loads a form and validates it (unless specified).
        If the form referenced has not been loaded, an attempt to create a form
        object using the information in the template will be made.
        """
        if not form or isinstance(form, str):
            if not name and isinstance(form, str):
                name = form
            if not name:
                name = request.endpoint.rsplit('.', 1)[1] if '.' in request.endpoint else request.endpoint
            if name not in self.forms:
                raise NoFormError("Cannot find form '%s'" % name)
            form = self.forms[name]
        if inspect.isclass(form):
            if isinstance(obj, dict):
                obj = DictObject(obj)
            if csrf_enabled is None:
                csrf_enabled = self.options["csrf_enabled"]
            form = form(obj=obj, meta={'csrf': csrf_enabled})

        current_context.data.form = form
        yield form

        if validate_on_submit and request.method == "POST":
            self.validate(form, exit_on_failure=exit_on_failure)