ooooooooooooooooooooooooolloooooooooooooooooooooddoooddddddddddddddddddoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooololllllllllllllllloooooooooooooooooooooddooooooooolloollllllllooooooooooooollooooolllllllllllooooooolollllllllllllllllllloollllcccccccccc
ooooooooooooooooooooollloollloooooolooooooooooooooooodddddddddddddddddddddoooooooooooooooooooooooooooooooooooollloooooooooooooooooooooooooooolollllllllolllllllllolololoooooooooooooodooooooooooollllllllllooooooooooooooollloollllccllccclllooooolllllllllcclllllllllllllllllcccccccccc
ooooollooolooooollooooooddoooloooolooooooooooooooooooddododddoooooooddooddddddooolooooooooooooooooooooooooddooooodddddddooollllllloollllloloolllollloollllloooooddddoddooooooooooododoooooooooooolllllllooooooooooooooolllllllllllllllllccclllllllllllllccccccllcccllllllllllllccccccccc
oooooooooooooolloooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooddddddoddooooooooodddddddddddddddddoddddoooolllllllllllllllooolllllllllooodoooodddddodooddoddddooooooooooooooooooooololoooollooooooolollllllllllllllolllcllllllllccccccccccccccclllllllllcccccccccccc
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooollooooodddddddddddddoddddddddddoooooooooooooooooolllllllllllllllllllllooooddddddooooooodddddoddddoooooooooooololooooooooollllllllooooooollllllllloooollllllllllllllllcllccccccccccccclllllllcccccccc::cccl
llllolololoooollooooooooooooooooooooolllloloooooooooooooolloolooolllllllllllllllllllooooooooooddodddddddddooolllllllllllooooooooollllllllooooodoooodddddoooodddooooddddddddoooooooooooooollllollllllllllllllloooooooooolllllloooolllllllllllllllllllllllllllclllllllllllllllllccccccccll
lllllllloollloooooooooooolooooloollllllllllooooooooooooolloooolllllllcccccccclllllllllllloooooooooddddooooollllllllllllloddddooooollllllodddooddddddddoooooodddddodddddddoooooooooooooooooooooolllllllllllloloooooooooololllloolllllllllllllllllllllllllllllllllllllllllllllllllllccclll
ccllllooooooooooooooooolllllllllllllllllloooooollllllllllllllllcccccccc:::ccccccccllllllllooooooooooollllllllcllllllooooodddddddooooooooodooooddoddooooododddodddddooodooooooooooooooooooooooooooooooooooooooolloolllllllllllllllllllllllllllllllllllllllllclcccccclccccccccllccccccclll
llllllllllllllllllllllllllllllllllllllloollllllllllllllllllcccccc::::::::cccccccllllllllllllooollllllllllllllcllloooooooooooooododdooooodoodoooooooddodddoooooooooooooooooooooooooooooloooooooollllllllllllllllllllllllllllllllllllllccccccccccccccccccccccccccccc::::::::c:ccccccccccll
llllllccccccccccccccccccccccccccccllllllllllllllcccccllcccccc:::::::::ccccllllllllllllllllllllllllllllllllllllllllooooooooooooooooooooooooooooooooooooooooooooooooooooolooooooooollllllllllllllllllllllllllllllllllllllcclllccccccccccccccccccccc:c::::::::::::::::::::::::::ccccccccccl
cccccccccccccc::c::cccccccccclllllllclllllllccccccccccc:::::::::::::cccccllllccccccccllllllllllllllllllllllllllllllllllloooloooololllolllollooooololllllllllllllllllllllllllllllllllllllllllllllllllllllllcccccclccccccccccccccccccccc::::::::cccccc:::::::::::;;:::::::::::::cccccccccc
:cccccccccccccccccccccccllllccccccccccccccccccc::::::::::;;;;;:ccccccclcclccclllcccclllllcccccccclllllllllllllllllllllllllllllllllllllllllccllllllllllllllllccccccccccccccccccccccccllllllllllllcllllcccccccccc:c:c::cc::::::::::::::::ccccccccclooollc:::::;;;;;;;;;;;;;:::::::::::::::
::c:::ccc:::ccc:cc::::ccccccc:c::::::::::::::::;;:::;::;::::::cccccccccccccclcccccccccllllccclclccccclllllllllllllllllllllllllllllcccccccccccccccccccccccccccc::::ccc::::::::::::cccclcclcllccc:cccccllcc:::::::cccccc::::;;::;:;;:;:clllollllllloooollclccccc:;;;;;;;;;;;;;;;;;::::;;::
::::::::::::::::::::;;;:::::::::;;;;;;;;;;;;;;;;;::ccc::::::::::::ccccccccc:ccccccc:cccccccccccccccccccccccccllllllllllllllllccccccccccccccccccccccccccc::::c:::::::::;;;;;;;;:;;::::::::::cccc:ccclllccc:::;;;;::::;;;;;;;,,;;;;;:::::;;;::::::::cccclllllllc;;;,;;;;;;;;;;;;;;;;;:::::
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;,,;,,,,,,,,,,;;;;;;;:;:;;;;;;;::::::::::c:c::::::::::::::::::::cccc::::::clllllllllclccccccccccccllccccccc:::::::cccccc:::::ccc:;;;;;;;;;;;;;;;;;;;;;::ccc:::cc:ccclc:::;;;;;;;;,;;;,,,,,,,,,,,,,,,,;,,,;::cccccc::cclclc::ccccclc:cc;,,;;;;;;;;:;:cllllo
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,;,;;;;;;;;;;;;;;;;:::::::::::::::::::::::::::::::::::c:::::cccccccccccccc::c:::::cccccc:::::::::::cclllccc::;;:::;;;;;;;;;;;,,,,,,,,,;looddooc:clcc::::::::;,,,,,,,,,,,,,,;;;;;;:;::::cccclllllllllllcccc::cloooooddddol:,,,,::cccllllllllll
,',,,',,,,',,,,,',,,',',,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;::::c:::::::::::::::::::::::;:::::::::::::::cccccc::cccc::;;;;:::c:::;;;:::::,,;:cooodooolllc:::;;;:;;;,,,,,,,,,,,;,;::ccc:::::cllllllllllllllllllcccccllclllloooolllcc:ccllcllllllllllcc
,,,,,,,,,,,,,,,,,,,,,,,,,,,,','''''''''',''''''''''',,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,;;;;;;;;;;;;;;;;;;;;;;;;;,,;;;;:::::::;;;;;;;;;;;;;;:;;,,,,,;;;;;;;;;:::::;;;::::::::::;;;;;;,,,,,,,,,,,,,;;;;;;::::::::::cccccclllllllllllcccc:::::;,;;,,;;::;;,;;;,,,,;:ccccccccc;;,
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,,,,,,,,,,,,,,,,,,,,;;;;;;;::::::::::::::::cccccccccccccccccccccccccccccccccccccccccccccccccccccllcllllllllllllllllllllllllllllllllloooooooooooooooooooooooooooolcclooololooloooollllc:;;,,;;;;:::cccllc::;;;;;;;;,,,,,,'''.............................................................
,,,,,,,,,.,',,,,,,;;;,,,;,,;;;;;;;;;;;;;;;;;;;;;:::c:cccc::cccccccccccccccccccclcccllllllcllllllollllllllllllllllllllloooooooooooooooooooooooooooooodoodoooddddooooooddddooodooooloooooooolllcllodddddddddddolccloolc:;:::cccc:::;;:;;;;;;,,.'''.....................................'''
,,,,,.. .....''....'......,;;,,;;,,,,,,,,,,,;;;,,;;;::::;;;;;;::::::::ccc::;;::::::::::cccclcccllllllllllllllllllollooooolooollllooooooooooooooooooooooooooooooooooooollllllooolllolllcccccclcccllloooc:;;;:::;;;;;;:llllooooooooolc:;;';;;;;;;;;;;,,,,,;,,,,,,,',,,,,,,,,,,,,,,,,,
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Abstractions and RegretsEvery Abstraction I Regret
The best code I ever deleted was a utility function called format_response. It accepted a response object, a format string, a fallback value, an optional transformer function, and a boolean for whether to strip whitespace. It was used in exactly one place. I wrote it because I thought I’d need it again. I didn’t. It sat in utils.py for eight months, collecting type: ignore comments and confusing every developer who opened the file. ...