How and when shell I use: Magick.Init and Magick.Term methods?

Question

It seems that Magick.Net doesn't have a really documentation.

I see in the home page example the use of Magick.Init and Magick.Term methods:

static void Main(string[] args)
{
    MagickNet.Magick.Init();
    MagicNet.Image img = new MagicNet.Image("file.jpg");
    img.Resize(System.Drawing.Size(100,100));
    img.Write("newFile.png");
    MagickNet.Magick.Term();
}

But I don't see any documentation when to use this methods, or what they really do.

1. What are this methods for?
2. This bring another question: should I ever trust this library as the graphic layer in my production code?