kvstorage

type KVStorage interface {
	Has(key string) bool
	ReadLSN(key string) (dbtypes.LSN, error)
	WriteLSN(key string, lsn dbtypes.LSN) error
	ReadUint(key string) (uint64, error)
	WriteUint(key string, val uint64) error
	Keys() []string
	Erase(key string) error
	Close() error
}