code: func (c *FakeClient) ReleaseContent(rlsName string, opts ...ContentOption) (resp *rls.GetReleaseContentResponse, err error) {
  	for _, rel := range c.Rels {
  		if rel.Name == rlsName {
  			return &rls.GetReleaseContentResponse{
  				Release: rel,
  			}, nil
  		}
  	}
  	return resp, storageerrors.ErrReleaseNotFound(rlsName)
  }
docs: // ReleaseContent returns the configuration for the matching release name in the fake release client.