constructor( name, type, readOnly = false, count = null ) {

		/**
		 * This flag can be used for type testing.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default true
		 */
		this.isNodeVar = true;

		/**
		 * The name of the variable.
		 *
		 * @type {string}
		 */
		this.name = name;

		/**
		 * The type of the variable.
		 *
		 * @type {string}
		 */
		this.type = type;

		/**
		 *  The read-only flag.
		 *
		 * @type {boolean}
		 */
		this.readOnly = readOnly;

		/**
		 * The size.
		 *
		 * @type {?number}
		 */
		this.count = count;

	}
Constructs a new node variable.

@param {string} name - The name of the variable.
@param {string} type - The type of the variable.
@param {boolean} [readOnly=false] - The read-only flag.
@param {?number} [count=null] - The size.