Sure, if they needed it. Thing is though, most boas do not need brumation being that they are mostly from a tropical climate. Rubber Boas and Rosy Boas are known to be brumated, but that is because they come from a temperate climate, North America.
So, to answer your question. More than likely you are speaking of Boa constrictors, which should <b>never</b> be brumated.
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