code: func (store *FSMetadataStore) Get(namespace string, key string) ([]byte, error) {
  	store.RLock()
  	defer store.RUnlock()
  
  	return ioutil.ReadFile(store.path(namespace, key))
  }
docs: // Get retrieves data by namespace and key. The data is read from a file named
  // after the key, stored in the namespace's directory.