e expected, object actual );
Assert.IsAssignableFrom( Type expected, object actual,
                string message );
Assert.IsAssignableFrom( Type expected, object actual,
                string message, params object[] parms );

Assert.IsNotAssignableFrom( Type expected, object actual );
Assert.IsNotAssignableFrom( Type expected, object actual,
                string message );
Assert.IsNotAssignableFrom( Type expected, object actual,
                string message, params object[] parms );

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