How to use the rebulk.utils.is_iterable function in rebulk

def then(self, matches, when_response, context):
        if is_iterable(when_response):
            ret = []
            when_response = list(when_response)
            for match in when_response:
                if match not in matches:
                    if self.match_name:
                        match.name = self.match_name
                    matches.append(match)
                    ret.append(match)
            return ret
        if self.match_name:
            when_response.name = self.match_name
        if when_response not in matches:
            matches.append(when_response)
            return when_response

def ordering_validator(match):
        """
        Validator for season list. They should be in natural order to be validated.

        episode/season separated by a weak discrete separator should be consecutive, unless a strong discrete separator
        or a range separator is present in the chain (1.3&5 is valid, but 1.3-5 is not valid and 1.3.5 is not valid)
        """
        values = match.children.to_dict()
        if 'season' in values and is_iterable(values['season']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['season'])) == values['season']:
                return False
        if 'episode' in values and is_iterable(values['episode']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['episode'])) == values['episode']:
                return False

        def is_consecutive(property_name):
            """
            Check if the property season or episode has valid consecutive values.
            :param property_name:
            :type property_name:
            :return:
            :rtype:
            """
            previous_match = None
            valid = True
            for current_match in match.children.named(property_name):
                if previous_match:

def then(self, matches, when_response, context):
        assert self.consequence
        if is_iterable(self.consequence):
            if not is_iterable(when_response):
                when_response = [when_response]
            iterator = iter(when_response)
            for cons in self.consequence:  #pylint: disable=not-an-iterable
                if inspect.isclass(cons):
                    cons = cons()
                cons.then(matches, next(iterator), context)
        else:
            cons = self.consequence
            if inspect.isclass(cons):
                cons = cons()  # pylint:disable=not-callable
            cons.then(matches, when_response, context)

def ensure_list(param):
    """
    Retrieves a list from given parameter.

    :param param:
    :type param:
    :return:
    :rtype:
    """
    if not param:
        param = []
    elif not is_iterable(param):
        param = [param]
    return param

def ordering_validator(match):
        """
        Validator for season list. They should be in natural order to be validated.

        episode/season separated by a weak discrete separator should be consecutive, unless a strong discrete separator
        or a range separator is present in the chain (1.3&5 is valid, but 1.3-5 is not valid and 1.3.5 is not valid)
        """
        values = match.children.to_dict()
        if 'season' in values and is_iterable(values['season']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['season'])) == values['season']:
                return False
        if 'episode' in values and is_iterable(values['episode']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['episode'])) == values['episode']:
                return False

        def is_consecutive(property_name):
            """
            Check if the property season or episode has valid consecutive values.
            :param property_name:
            :type property_name:
            :return:
            :rtype:
            """

def then(self, matches, when_response, context):
        removed = self.remove.then(matches, when_response, context)
        if is_iterable(removed):
            removed = list(removed)
            for match in removed:
                match.name = self.match_name
        elif removed:
            removed.name = self.match_name
        if removed:
            self.append.then(matches, removed, context)

def ordering_validator(match):
        """
        Validator for season list. They should be in natural order to be validated.

        episode/season separated by a weak discrete separator should be consecutive, unless a strong discrete separator
        or a range separator is present in the chain (1.3&5 is valid, but 1.3-5 is not valid and 1.3.5 is not valid)
        """
        values = match.children.to_dict()
        if 'season' in values and is_iterable(values['season']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['season'])) == values['season']:
                return False
        if 'episode' in values and is_iterable(values['episode']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['episode'])) == values['episode']:
                return False

        def is_consecutive(property_name):
            """
            Check if the property season or episode has valid consecutive values.
            :param property_name:
            :type property_name:
            :return:
            :rtype:
            """

def toposort_rules(rules):
    """
    Sort given rules using toposort with dependency parameter.
    :param rules:
    :type rules:
    :return:
    :rtype:
    """
    graph = {}
    class_dict = {}
    for rule in rules:
        if rule.__class__ in class_dict:
            raise ValueError("Duplicate class rules are not allowed: %s" % rule.__class__)
        class_dict[rule.__class__] = rule
    for rule in rules:
        if not is_iterable(rule.dependency) and rule.dependency:
            rule_dependencies = [rule.dependency]
        else:
            rule_dependencies = rule.dependency
        dependencies = set()
        if rule_dependencies:
            for dependency in rule_dependencies:
                if inspect.isclass(dependency):
                    dependency = class_dict.get(dependency)
                if dependency:
                    dependencies.add(dependency)
        graph[rule] = dependencies
    return toposort(graph)

def ordering_validator(match):
        """
        Validator for season list. They should be in natural order to be validated.

        episode/season separated by a weak discrete separator should be consecutive, unless a strong discrete separator
        or a range separator is present in the chain (1.3&5 is valid, but 1.3-5 is not valid and 1.3.5 is not valid)
        """
        values = match.children.to_dict()
        if 'season' in values and is_iterable(values['season']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['season'])) == values['season']:
                return False
        if 'episode' in values and is_iterable(values['episode']):
            # Season numbers must be in natural order to be validated.
            if not list(sorted(values['episode'])) == values['episode']:
                return False

        def is_consecutive(property_name):
            """
            Check if the property season or episode has valid consecutive values.
            :param property_name:
            :type property_name:
            :return:
            :rtype:
            """
            previous_match = None
            valid = True
            for current_match in match.children.named(property_name):
                if previous_match: