NewDiskImageStore create a new DiskImageStore instance.

NewMemoryLaptopStore return a MemoryLaptopStore instance.

NewMemoryRateStore create a new MemoryRateStore instance.

NewMemoryUserStore creates a new memory user store.

ErrAlreadyExists record already exists.

UserStore Errors.

DiskImageStore store image on disk.

ImageInfo stands for image meta info.

MemoryLaptopStore store Laptop in memory.

MemoryRateStore store laptop rate score in memory.

MemoryUserStore store user in memory.

Rate Laptop rate score.

ImageStore store for image file.

LaptopStore store interface for Laptop.

RateStore Latop rate store.

UserStore store user information.