services

type PictureService interface {
	GetUserPictures(userId string) (result *prpc.PicturesMessage, err error)
	GetUserPicture(userId string, pictureId string) (result *prpc.PictureMessage, err error)
	CreateUserPicture(data *prpc.CreateUserPictureRequest) (result *prpc.PictureMessage, err error)
	DeleteUserPicture(userId string, pictureId string) (err error)
}