code: def get_cache_context(self):
          '''
          Retrieve a context cache from disk
          '''
          with salt.utils.files.fopen(self.cache_path, 'rb') as cache:
              return salt.utils.data.decode(self.serial.load(cache)f get_cache_context(self):
          '''
          Retrieve a context cache from disk
          '''
          with salt.utils.files.fopen(self.cache_path, 'rb') as cache:
              return salt.utils.data.decode(self.serial.load(cache))
docs: Retrieve a context cache from disk