package persistence type Persistence struct { storage PersistenceStorage } func (c *Persistence) Save(tenant_id string, key string, data []byte) error { return nil } func (c *Persistence) Load(tenant_id string, key string) ([]byte, error) { return nil, nil } func (c *Persistence) Delete(tenant_id string, key string) error { return nil } func (c *Persistence) Scan(tenant_id string, prefix string, cursor int64) ([]string, error) { return nil, nil }