ProxyGenerator/src-examples/ProxyInterfaceConsumerForPnP/Interfaces/IClientContext.cs

using System;
using System.Linq.Expressions;
using Microsoft.SharePoint.Client;

namespace ProxyInterfaceConsumerForPnP.Interfaces
{
    [ProxyInterfaceGenerator.Proxy(typeof(ClientContext))]
    public partial interface IClientContext : IClientRuntimeContext
    {
        void Load<TSource, TTarget>(IClientObject clientObject, params Expression<Func<TSource, object>>[] retrievals)
            where TSource : IClientObject
            where TTarget : ClientObject;
    }
}