Allow input names to be listed via dir()

Author: cpsievert

shiny/session/_session.py

@@ -170,6 +170,7 @@ class Session(ABC):
     id: str
     input: Inputs
     output: Outputs
+    clientdata: Inputs
     user: str | None
     groups: list[str] | None
 
@@ -1358,6 +1359,9 @@ def __contains__(self, key: str) -> bool:
         # creates a reactive dependency, and returns whether the value is set.
         return self[key].is_set()
 
+    def __dir__(self):
+        return list(self._map.keys())
+
 
 # ======================================================================================
 # Outputs