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class Singleton {
    private static instance: Singleton;

    private constructor() {
        // Private constructor to prevent instantiation
    }

    static getInstance(): Singleton {
        if (!Singleton.instance) {
            Singleton.instance = new Singleton();
        }
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        return Singleton.instance;
    }

    public someMethod(): void {
        console.log("Some method called");
    }
}

// Usage
const singletonInstance1 = Singleton.getInstance();
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const singletonInstance2 = Singleton.getInstance();

console.log(singletonInstance1 === singletonInstance2); // Output: true, there is only one instance
singletonInstance1.someMethod(); // Output: Some method called

pastebin private