experiment_instance.use{redirect_tonew_users_sign_up_project_path({namespace_id: @group.id,trial: helpers.in_trial_during_signup_flow?}.merge(options))}# control
experiment_instance.try(:invite_page){redirect_tonew_users_sign_up_group_invite_path({group_id: @group.id,trial: helpers.in_trial_during_signup_flow?}.merge(options))}# with separate page