Fixed missing imports

holoviz · Jan 8, 2017 · efd4bd9 · efd4bd9
1 parent 69a9793
commit efd4bd9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/holoviews/plotting/util.py b/holoviews/plotting/util.py
@@ -4,8 +4,8 @@
 import param
 
 from ..core import (HoloMap, DynamicMap, CompositeOverlay, Layout,
-                    GridSpace, NdLayout, Store, Dataset)
-from ..core.spaces import get_nested_streams
+                    Overlay, GridSpace, NdLayout, Store, Dataset)
+from ..core.spaces import get_nested_streams, Callable
 from ..core.util import (match_spec, is_number, wrap_tuple, basestring, pd,
                          get_overlay_spec, unique_iterator, safe_unicode, is_nan)