def get_issues(self, filter=github.GithubObject.NotSet, state=github.GithubObject.NotSet, labels=github.GithubObject.NotSet, sort=github.GithubObject.NotSet, direction=github.GithubObject.NotSet, since=github.GithubObject.NotSet):
        """
        :calls: `GET /issues <http://developer.github.com/v3/issues>`_
        :rtype: :class:`github.PaginatedList.PaginatedList` of :class:`github.Issue.Issue`
        :param filter: string
        :param state: string
        :param labels: list of :class:`github.Label.Label`
        :param sort: string
        :param direction: string
        :param since: datetime.datetime
        :rtype: :class:`github.PaginatedList.PaginatedList` of :class:`github.Issue.Issue`
        """
        assert filter is github.GithubObject.NotSet or isinstance(filter, (str, unicode)), filter
        assert state is github.GithubObject.NotSet or isinstance(state, (str, unicode)), state
        assert labels is github.GithubObject.NotSet or all(isinstance(element, github.Label.Label) for element in labels), labels
        assert sort is github.GithubObject.NotSet or isinstance(sort, (str, unicode)), sort
        assert direction is github.GithubObject.NotSet or isinstance(direction, (str, unicode)), direction
        assert since is github.GithubObject.NotSet or isinstance(since, datetime.datetime), since
        url_parameters = dict()
        if filter is not github.GithubObject.NotSet:
            url_parameters["filter"] = filter
        if state is not github.GithubObject.NotSet:
            url_parameters["state"] = state
        if labels is not github.GithubObject.NotSet:
            url_parameters["labels"] = ",".join(label.name for label in labels)
        if sort is not github.GithubObject.NotSet:
            url_parameters["sort"] = sort
        if direction is not github.GithubObject.NotSet:
            url_parameters["direction"] = direction
        if since is not github.GithubObject.NotSet:
            url_parameters["since"] = since.strftime("%Y-%m-%dT%H:%M:%SZ")
        return github.PaginatedList.PaginatedList(
            github.Issue.Issue,
            self._requester,
            "/issues",
            url_parameters
        )