class OCI8::Metadata::Package

Otherwise, +false+.
{invoker's rights}[http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28370/subprograms.htm#i18574].
Returns +true+ if the package subprograms have

def is_invoker_rights?
  attr_get_ub1(OCI_ATTR_IS_INVOKER_RIGHTS) != 0
end