set

type MapSet[T comparable] struct {
	// contains filtered or unexported fields
}

type Set[T comparable] interface {
	// Add puts an element into the set.
	Add(elem T)

	// AddAll puts many elements into the set.
	AddAll(elems ...T)

	// Remove removes an element from the set.
	Remove(elem T)

	// RemoveAll removes all the given elements from the set.
	RemoveAll(elems ...T)

	// Clear removes all elements from the set.
	Clear()

	// Has returns true if the set contains the given element.
	Has(elem T) bool

	// Elements returns all elements in the set in a non-deterministic order.
	// For empty sets, this may return either nil or an empty slice.
	Elements() []T

	// Iterate invokes the callback for every element in the set.
	// Values are iterated in a non-deterministic order.
	// If the callback returns false then iteration will stop.
	Iterate(callback func(elem T) bool)

	// Len returns the number of elements in the set.
	Len() int
}

type SyncStrings interface {
	Has(n string) bool
	Add(elts ...string)
	Del(elts ...string)
	Clone() SyncStrings
	Minus(other SyncStrings) SyncStrings
	Entries() []string
	SortedEntries() []string
	Empty() bool
	Len() int
	Join(sep string) string
	Equal(other SyncStrings) bool
}