+#### Method org.AGL.afm.user.once
+
+**Description**:
+
+**Input**: the *id* of the application
+
+Either just a string:
+
+ "appli@x.y"
+
+Or an object containing field "id" of type string.
+
+ {"id":"appli@x.y"}
+
+**output**: The *state* of the application retrieved or launched.
+See *org.AGL.afm.user.state* to get a description of the returned
+object.
+
+---
+