can someone please explain what this code does for me?

Question

if (Assessments.< button4_Click > o__SiteContainer0.<> p__Site3b == null)

{

Type type8 = typeof(Assessments);

cSharpArgumentInfoArray = new CSharpArgumentInfo[] { CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null), CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null) };

Assessments.< button4_Click > o__SiteContainer0.<> p__Site3b = CallSite<Func<CallSite, object, object, object>>.Create(Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(CSharpBinderFlags.BinaryOperationLogical, ExpressionType.And, type8, cSharpArgumentInfoArray));

}

!0 target20 = Assessments.< button4_Click > o__SiteContainer0.<> p__Site3b.Target;

CallSite<Func<CallSite, object, object, object>> u003cu003ep_Site3b = Assessments.< button4_Click > o__SiteContainer0.<> p__Site3b;

object obj17 = target;