def list_members(trigger_id, orphans = false)
      ret = http_get "triggers/groups/#{trigger_id}/members?includeOrphans=#{orphans}"
      ret.collect { |t| Trigger.new(t) }
    end
def list_members(trigger_id, orphans = false)
      ret = http_get "triggers/groups/#{trigger_id}/members?includeOrphans=#{orphans}"
      ret.collect { |t| Trigger.new(t) }
    end
Lists members of a group trigger
 @param [String] trigger_id ID of the group trigger to list members
 @param [boolean] orphans flag to include orphans
 @return [Array<Trigger>] Members found