export class Node {

    readonly id: number
    private size : number

    public static DEFAULT_SIZE = 1

    constructor(id:number, size ?:number){        
        this.id = id
        this.size = size  || Node.DEFAULT_SIZE   
    }
    //getters
    getSize = () : Node["size"] => this.size
    //setters 
    setSize = (size:number) : void => {this.size = size}
}