Small fix for bokeh widget import
@@ -16,7 +16,7 @@ from bokeh.resources import CDN, INLINE
from ...core import Store, HoloMap
from ..comms import JupyterComm, Comm
from ..renderer import Renderer, MIME_TYPES
-from .widgets import BokehScrubberWidget, BokehSelectionWidget
+from .widgets import BokehScrubberWidget, BokehSelectionWidget, BokehServerWidgets
from .util import compute_static_patch, serialize_json
