code: def get_appliance_by_name(self, appliance_name):
          
          appliances = self.get_appliances()
  
          if appliances:
              for appliance in appliances:
                  if appliance['name'] == appliance_name:
                      return appliance
          return None
docs: Gets the particular Image Streamer resource based on its name.
  
          Args:
              appliance_name:
                  The Image Streamer resource name.
  
          Returns:
               dict: Image Streamer resource.