Fix XRTools library bug that didn't nil check in pickup

addons/godot-xr-tools/functions/function_pickup.gd

@@ -437,6 +437,7 @@ func _pick_up_object(target: Node3D) -> void:
 	# Pick up our target. Note, target may do instant drop_and_free
 	picked_up_ranged = not _object_in_grab_area.has(target)
 	picked_up_object = target
+	if target and target.has_method("pick_up"):
 		target.pick_up(self)
 
 	# If object picked up then emit signal

library_changes.md

@@ -0,0 +1,6 @@
+
+
+function_pickup.gd:
+	Add nil check in func _pick_up_object(target: Node3D)
+	440: if target and target.has_method("pick_up"):
+		target.pick_up(self)