code: def iface(name, providername=None, cache=None):
      
      _providername = providername
      if not _providername:
          _providername = provider_check()
  
      import_str = 'netshowlib.%s.iface' % _providername
      return import_module(import_str).iface(name, cache=cache)
docs: | **Interface Discovery **
      calls into ``netshowlib.[provider].iface.iface()`` to get the correct
      interface type
  
      :return:  Iface object that best matches interface characteristics