Is there a way to embed on code snippet into another?

Question

Let's assume that I have

• snippet A
• snippet B
  where snippet A contains snippet B n times with n > 1.

Right now I have copied the content of snippet B into snippet A. This has the disadvantage, that whenever I change snippet B, I have to additionally change snippet A. Therefore, my question is whether there is some kind of statement to embed one snippet into another?
e.g.
<externalsnippet src=".\snippetB.snippet" />
or something similar.