dbus-introspect-get-signature

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

(dbus-introspect-get-signature BUS SERVICE PATH INTERFACE NAME &optional DIRECTION)

Return signature of a `method' or `signal', represented by NAME, as string.
If NAME is a `method', DIRECTION can be either "in" or "out".
If DIRECTION is `nil', "in" is assumed.

If NAME is a `signal', and DIRECTION is non-`nil', DIRECTION must
be "out".