dbus-introspect-get-argument-names

dbus-introspect-get-argument-names is a compiled Lisp function in `dbus.el'.

(dbus-introspect-get-argument-names BUS SERVICE PATH INTERFACE NAME)

Return a list of all argument names as list of strings.
NAME must be a "method" or "signal" object.

Argument names are optional, the function can return `nil'
therefore, even if the method or signal has arguments.