C# singleton class pattern

BoilerplateSingleton.cs

namespace Foo
{
    /// <summary> 
    /// A class showing the bolierplate code for a singleton
    /// </summary>
    public sealed class BoilerplateSingleton // sealed to prevent derivatives adding non-singleton copies
    {
        // this class is a singleton, this field holds the single instatiated 
        // object. It is instantiated lazily, only being created when a 
        // reference to the object is requested via the Instance property
        private static readonly Lazy<BoilerplateSingleton> lazy =
            new Lazy<BoilerplateSingleton>(() => new BoilerplateSingleton());
            
        /// <summary>
        /// Gets a reference to the singleton instance
        /// </summary>
        public static BoilerplateSingleton Instance { get => lazy.Value; }

        // constructor is private because this is a singleton
        private BoilerplateSingleton() { }
        
        // rest of class ...
    }
}