Fix failing doctest

[giordano]

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[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@5e5513a). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #96   +/-   ##
=========================================
  Coverage          ?   97.40%           
=========================================
  Files             ?       12           
  Lines             ?      694           
  Branches          ?        0           
=========================================
  Hits              ?      676           
  Misses            ?       18           
  Partials          ?        0           

Impacted Files	Coverage Δ
src/parsing.jl	100.00% <ø> (ø)

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