specification

type Specification[T any] interface {
	// IsSatisfiedBy check if t is satisfied by the specification.
	IsSatisfiedBy(t T) bool
	// And create a new specification that is the AND operation of the current specification and
	// another specification.
	And(another Specification[T]) Specification[T]
	// Or create a new specification that is the OR operation of the current specification and
	// another specification.
	Or(another Specification[T]) Specification[T]
	// Not create a new specification that is the NOT operation of the current specification.
	Not(another Specification[T]) Specification[T]
}