@metamask/eth-sig-utils imports @metamask/abi-utils and causes an error

To be honest, I have no idea why this is happening. I'm using
@metamask/eth-sig-util@7.0.2
@metamask/abi-utils@2.0.2
and this is the error I get:

Cannot read properties of undefined (reading 'type')
TypeError: Cannot read properties of undefined (reading 'type')
at http://localhost:3030/static/js/bundle.js:648939:42
at Array.map ()
at union (http://localhost:3030/static/js/bundle.js:648939:31)
at ./node_modules/@metamask/abi-utils/dist/parsers/function.js (http://localhost:3030/static/js/bundle.js:56688:29)
at options.factory (http://localhost:3030/static/js/bundle.js:695040:31)
at __webpack_require__ (http://localhost:3030/static/js/bundle.js:694419:32)
at fn (http://localhost:3030/static/js/bundle.js:694698:21)
at ./node_modules/@metamask/abi-utils/dist/parsers/index.js (http://localhost:3030/static/js/bundle.js:56816:14)
at options.factory (http://localhost:3030/static/js/bundle.js:695040:31)
at __webpack_require__ (http://localhost:3030/static/js/bundle.js:694419:32)

Reproduce the failure with @metamask/eth-sig-util@7.0.2 and @metamask/abi-utils@2.0.2, using the reported webpack stack trace as the entry point. Inspect the interaction between dist/parsers/function.js and dist/parsers/index.js, then verify that importing the packages no longer throws the reported TypeError.

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