How do I ignore the documentation generated by the help file designer for a public class or methods?

How can I omit some public classes or methods from those included in the documentation generated by The SandCastle Help File Builder?

Example. I have the following public class with two public methods:

/// <summary>
/// A simple test class.
/// </summary>
public class MyClass
{
    /// <summary>
    /// Method1s this instance.
    /// </summary>
    public void Method1()
    {
        // Do some operations here.
    }

    /// <summary>
    /// Method2s this instance.
    /// </summary>
    public void Method2()
    {
        // Do some operations here.
    }
}

When I create a help file from this code using SandCastle Help File Builder, I want to ignore it Method2.