set

type Set interface {
	// Base returns the base Type.
	Base() redistypes.Type

	// Add implements the Redis command SADD. It adds one or more values to a set
	// and returns the number of values added to the set, not including the ones
	// that already existed.
	//
	// See https://redis.io/commands/sadd.
	Add(values ...interface{}) (uint64, error)

	// Card implements the Redis command SCARD. It returns the cardinality of the
	// set, or 0 if the set doesn't exist.
	//
	// See https://redis.io/commands/scard.
	Card() (uint64, error)
}