@classmethod
    def id_offset(cls):
        max_ids = []
        for backend in Store.renderers.keys():
            store_ids = Store.custom_options(backend=backend).keys()
            max_id = max(store_ids)+1 if len(store_ids) > 0 else 0
            max_ids.append(max_id)
        # If no backends defined (e.g plotting not imported) return zero
        return max(max_ids) if len(max_ids) else 0
Returns true if the stream has been closed.
dataset/ETHPy150Open ioam/holoviews/holoviews/core/options.py/StoreOptions.id_offset--crossover with--dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/iostream.py/BaseIOStream.closed