public override object Execute(IGraphProcessingEnvironment procEnv)
{
object[] values = new object[ArgExprs.Count-1];
for(int i = 1; i < ArgExprs.Count; ++i)
{
values[i-1] = ArgExprs[i].Evaluate(procEnv);
}
procEnv.DebugEntering((string)ArgExprs[0].Evaluate(procEnv), values);
return null;
}