I apologize in advance if this turns out to be a dumb question. But grepping through the source code, I don't see any actual calls to Poison functions (it's used in the @moduledoc of the ExCrypto.Token module).

I bring this up, because I noticed poison was being added as a transitive dependency once I added ex_crypto. A few other packages I added as deps already use Jason, so my thinking was to replace whatever use ex_crypto had for Poison with the equivalent function calls from Jason.

It's not a big deal either way, but I just found it curious as I investigated further, and so decided to request some clarification here.