nbt-api.php copy users parameter clarification

I am doing some work with nbt-api.php and just want a clarification on the parameter:

'users' => false, => Copy users?

If set to false, does that mean the parent user is NOT copied as the author of the post/page in the child blog? I basically want the child blog to use that blog's admin as the author. Please advise if I should set this param as true or false.

Thanks.