feat(protocol-designer): generate Python for pickUpTip command

[ddcc4]

Overview

This emits Python for the PD atomic pickUpTip command. The Python code looks like this:

pipette_left.pick_up_tip(location=tip_rack_1)

PD implements its own tip tracking and calculates exactly which tip to pick up. However, we don't want to emit the exact tip well in the Python code because it would make it painful for someone to edit the Python code to add or remove steps.

We do emit the tiprack ID in the Python code because PD makes the user choose which tiprack to use for each transfer. If we didn't emit the tiprack ID, the PAPI would pick the next available tiprack, which may not match the tiprack that the user chose in PD.

AUTH-1093

Test Plan and Hands on Testing

There was no existing unit test for the JSON pickUpTip command, so I added one.

With this change, we can now generate a runnable Python protocol for a simple PD transfer. I checked that the protocol passes with simulate.

Risk assessment

Low. Python generation is not used externally yet.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.71%. Comparing base (50c487c) to head (301f4d0).
Report is 10 commits behind head on edge.

Additional details and impacted files

@@           Coverage Diff           @@
##             edge   #17610   +/-   ##
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  Coverage   25.71%   25.71%           
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  Files        2843     2843           
  Lines      218924   218930    +6     
  Branches    17949    17949           
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+ Hits        56299    56305    +6     
  Misses     162610   162610           
  Partials       15       15           

Flag	Coverage Δ
protocol-designer	18.96% <100.00%> (+<0.01%)	⬆️
step-generation	4.38% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...generation/src/commandCreators/atomic/pickUpTip.ts	87.71% <100.00%> (+1.44%)	⬆️

[jerader]

lgtm!