fix: Update bin type to be the full string

[csogilvie]

Fixes #1160

[csogilvie]

I have only been able to test this by copying the code in to Jupyter Notebook and running it, but it seems to have completed in my tests.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.93%. Comparing base (c33ec96) to head (e3c0162).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1161   +/-   ##
=======================================
  Coverage   71.93%   71.93%           
=======================================
  Files           9        9           
  Lines        1037     1037           
=======================================
  Hits          746      746           
  Misses        291      291           

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