Raising warnings based on class attributes

Here is some code:

class Program
{
    static void Main(string[] args)
    {
        MyClass class1 = new MyClass();
        MyOtherClass class2 = new MyOtherClass();

        Helper.UseAttribute<MyClass>(class1);

        //Raise a warning to tell the developer that they cannot use this class
        //as there is no property with the specified attribute.
        Helper.UseAttribute<MyOtherClass>(class2);
    }
}

public class MyAttribute : System.Attribute { }

class MyClass
{
    [MyAttribute]
    public string SomethingAwesome { get; set; }
}

class MyOtherClass
{
    public string SomethingElseWhichIsAlsoPrettyAwesome { get; set; }
}

static class Helper
{
    public static void UseAttribute<T>(T sender)
    {
        //Do something with the property that has MyAttribute
        //If there isn't a property with this attribute, then raise
        //a warning.
    }
}

In an ideal scenario, I want to restrict a developer from passing classes to a method which do not have a certain attribute.

I am aware that I can use an interface, or a base class of some description, however the question really is whether something like the example above is possible.