code: func (a *API) Store(ctx context.Context, data io.Reader, size int64, toEncrypt bool) (addr storage.Address, wait func(ctx context.Context) error, err error) {
  	log.Debug("api.store", "size", size)
  	return a.fileStore.Store(ctx, data, size, toEncrypt)
  }
docs: // Store wraps the Store API call of the embedded FileStore