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// singly linked list node classexport type NodeType = {	value: string	next: null|NodeType}|null
export class Node {	public value: string	public next: NodeType|null = null
	constructor(data: string) {		this.value = data;		this.next = null;	}}
// singly linked list interfaceexport interface ILinkedList {	size: number;	insertInHead(data: string): boolean;	insertInTail(data: string): boolean;	insertInPositonX(data: string, position: number): boolean;	printValues(): void	// deleteNode(node: Node): void;	// search(comparator: (data: T) => boolean): Node<T> | null;}