Fixed flakes

panel/io/state.py

@@ -20,9 +20,17 @@ class _state(param.Parameterized):
     apps to indicate their state to a user.
     """
 
+    cache = param.Dict(default={}, doc="""
+       Global location you can use to cache large datasets or expensive computation results
+       across multiple client sessions for a given server.""") 
+
     webdriver = param.Parameter(default=None, doc="""
       Selenium webdriver used to export bokeh models to pngs.""")
 
+    _curdoc = param.ClassSelector(class_=Document, doc="""
+        The bokeh Document for which a server event is currently being
+        processed.""")
+
     # Whether to hold comm events
     _hold = False
 
@@ -49,8 +57,6 @@ class _state(param.Parameterized):
     # Stores a set of locked Websockets, reset after every change event
     _locks = WeakSet()
 
-    _curdoc = None
-
     def __repr__(self):
         server_info = []
         for server, panel, docs in self._servers.values():

panel/tests/models/test_location.py

@@ -1,8 +1,5 @@
-import panel as pn
-
 from panel.models.location import Location
 
-
 def test_constructor():
     # When
     actual = Location()