Parameters for *rigidlinkupdate function

Dear all,

I'm looking for the arguments of the *rigidlinkupdate function.

*rigidlinkupdate $rigid_to_update $independante_node 1

I understand the first and the second argument, but can't guess the third one. In fact this function is depreciated and no more documented.

Could you please help me and say what is this third argument.

Thanks in advance.

BR,

Antoine