| 1 | export declare abstract class AbstractSet<T> {
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| 2 | abstract add(item: T): this;
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| 3 | abstract entries(): Array<T>;
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| 4 | abstract remove(item: T): boolean;
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| 5 | abstract has(item: T): boolean;
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| 6 | abstract readonly Size: number;
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| 7 | diff(set: AbstractSet<T>): T[];
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| 8 | union(set: AbstractSet<T>): T[];
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| 9 | intersect(set: AbstractSet<T>): T[];
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| 10 | isEmpty(): boolean;
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| 11 | }
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