def retrieve(self, id) :
        """
        Retrieve a single task

        Returns a single task available to the user according to the unique task ID provided
        If the specified task does not exist, this query will return an error

        :calls: ``get /tasks/{id}``
        :param int id: Unique identifier of a Task.
        :return: Dictionary that support attriubte-style access and represent Task resource.
        :rtype: dict
        """

        _, _, task = self.http_client.get("/tasks/{id}".format(id=id))
        return task