FragmentClassifier.byPredefinedType returns ExpressId as number

[Manriss]

Describe the bug 📝

When using the 'FragmentClassifier' with the 'byPredefinedType' method, it returns a 'FragmentIdMap' with 'expressId' as numbers instead of strings.

Reproduction ▶️

No response

Steps to reproduce 🔢

No response

System Info 💻

System:
    OS: Windows 10 10.0.19045
    CPU: (24) x64 12th Gen Intel(R) Core(TM) i7-12850HX
    Memory: 50.79 GB / 63.69 GB
  Binaries:
    Node: 18.16.0 - C:\Program Files\nodejs\node.EXE
    npm: 9.5.1 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (120.0.2210.133)
    Internet Explorer: 11.0.19041.3636
  npmPackages:
    openbim-components: 1.2.0 => 1.2.0

Used Package Manager 📦

npm

Error Trace/Logs 📃

No response

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