package.version_needed: Name written through a package held in two versions doesn't say which

Name written through a package held in two versions doesn't say which.

Area 11, External services; not declinable; the next step is usually the agent's.

While two versions of a package sit side by side, a name written through it says which one it means:

example

use shared/providers/postcodes/// Keeps a customer's postcode as it is.action keep_postcode(postcode: Postcodes.UkPostcode) -> Postcodes.v3.UkPostcode {    return postcode}

text

error: `Postcodes` is held in two versions, so a name through it says which --> domains/addresses/actions/keep_postcode.jadpo:4:32  |4 | action keep_postcode(postcode: Postcodes.UkPostcode) -> Postcodes.v3.UkPostcode {  |                                ^^^^^^^^^ which version?  reason: The project holds `Postcodes.v2` and `Postcodes.v3` side by side while callers move across, so a name written through the package carries its version, and each use says which one it means.  next: Write `Postcodes.v2.UkPostcode` or `Postcodes.v3.UkPostcode` (agent)  rule: package.version_needed  help: https://jadpo.dev/docs/errors/package.version_neededcheck failed: 1 error, 6 files