I'm not sure what you mean.
These are dev dependencies, they are used by big-integer developers to
perform various development tasks, but they are not required to simply
use the library so there is no point in packaging them in Debian.
And they are *not* embedded in the package, they only appear in
package.json.
this makes sense, thanks.
So the review goes to the next step.
1) licenses are missing (even if not used in the binary package, the copyright
should list all the licenses in the source code).
2) please use the same copyright as upstream for Debian packaging, this will make
patch upstreaming possible without having to explicitly relicense them