code: def read_from_hdx(identifier, configuration=None):
          # type: (str, Optional[Configuration]) -> Optional['Showcase']
          
  
          showcase = Showcase(configuration=configuration)
          result = showcase._load_from_hdx('showcase', identifier)
          if result:
              return showcase
          return None
docs: Reads the showcase given by identifier from HDX and returns Showcase object
  
          Args:
              identifier (str): Identifier of showcase
              configuration (Optional[Configuration]): HDX configuration. Defaults to global configuration.
  
          Returns:
              Optional[Showcase]: Showcase object if successful read, None if not