Return the arguments taken from the templatetag that will be used to the
        Node class.
        Take a list of all tokens and return a list of real tokens. Here
        should be done some validations (number of tokens...) and eventually
        some parsing...

def get_template_node_arguments(cls, tokens):
        """
        Return the arguments taken from the templatetag that will be used to the
        Node class.
        Take a list of all tokens and return a list of real tokens. Here
        should be done some validations (number of tokens...) and eventually
        some parsing...
        """
        if len(tokens) < 3:
            raise template.TemplateSyntaxError(
                "'%r' tag requires at least 2 arguments." % tokens[0])
        return tokens[1], tokens[2], tokens[3:]