Make terminal interface pluggable

[nakabonne]

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (master@5b4c5dd). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #10   +/-   ##
=========================================
  Coverage          ?   44.87%           
=========================================
  Files             ?        8           
  Lines             ?      410           
  Branches          ?        0           
=========================================
  Hits              ?      184           
  Misses            ?      204           
  Partials          ?       22           

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