code: def get_display_types():
      
      display_types = OrderedDict()
      for namespace in get_supported_libraries():
          display_types[namespace] = get_choices('luma.{0}.device'.format(
              namespace))
  
      return display_types
docs: Get ordered dict containing available display types from available luma
      sub-projects.
  
      :rtype: collections.OrderedDict