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public class Singleton
   
     where T : new(){    private static T m_instance;    private static readonly object m_lock = new object();    public static T GetInstance()    {        if (null == m_instance)        {            lock (m_lock)            {                if (null == m_instance)                {                    m_instance = new T();                }            }        }        return m_instance;    }}public class myClass : Singleton
    
     {    public void myFunc()    { }}
    
   

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