Keep scriptInfo and project alive even after file delete till next file open #57492

sheetalkamat · 2024-02-22T22:58:46Z

Some times when updating branches or doing npm ci, instead of file change event, we may get file delete followed by file create event.
This was previously handled not so efficiently as: as soon as we get delete event say on configFile for the project, we would remove the whole project from memory and schedule update for open files, only to get file create so end up creating project again.

With this change:

784e0ef When config file watched gets deleted, we defer removing/closing it and reuse if we get create event, we can just mark this project for update and remove its defer delete option. The deferred delete marked project is kept alive and acts as orphan project until next file open which is when we normally do gc on all projects and scriptInfos. Note we do something similar for inferred project so we can reuse it so its just extending that concept to configured project
bd10117 For scriptInfos that are deleted, they are also kept around and watched till next file open, so we can reuse the text and version if it doesnt change. Eg npm ci can replace file with same text and this helps with file usage. Again these deferred removed on next file open.

Other two commits in the PR are tests before the change to cover for scenarios of file delete, recreate etc and refactoring

This should also help with #57196 when we would open more projects and configs to search for your default project

Without proper repro to measure perf reliably but in my dogfooding and from tests it seems to really help with the perf in these kind of scenarios. (No guarantee when timeout happens and how things will unfold to see if delete, create happen or not)

typescript-bot · 2024-02-22T22:58:58Z

Looks like you're introducing a change to the public API surface area. If this includes breaking changes, please document them on our wiki's API Breaking Changes page.

Also, please make sure @DanielRosenwasser and @RyanCavanaugh are aware of the changes, just as a heads up.

tests/baselines/reference/api/typescript.d.ts

jakebailey · 2024-04-10T21:47:36Z

@typescript-bot perf test this
@typescript-bot user test tsserver
@typescript-bot test tsserver top100

typescript-bot · 2024-04-10T21:47:40Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this`	✅ Started	👀 Results
`user test tsserver`	✅ Started	✅ Results
`test tsserver top100`	✅ Started

typescript-bot · 2024-04-10T22:03:08Z

@jakebailey Here are the results of running the user tests comparing main and refs/pull/57492/merge:

Everything looks good!

typescript-bot · 2024-04-10T22:23:58Z

@jakebailey
The results of the perf run you requested are in!

Here they are:

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Angular - node (v18.15.0, x64)}
_{Memory used}	_{295,880k (± 0.01%)}	_{295,858k (± 0.01%)}	_~	_295,810k	_295,916k	_{p=0.575 n=6}
_{Parse Time}	_{3.21s (± 0.43%)}	_{3.20s (± 0.78%)}	_~	_3.17s	_3.23s	_{p=0.391 n=6}
_{Bind Time}	_{0.98s (± 1.19%)}	_{0.98s (± 1.36%)}	_~	_0.97s	_1.00s	_{p=0.858 n=6}
_{Check Time}	_{9.70s (± 0.46%)}	_{9.70s (± 0.34%)}	_~	_9.67s	_9.74s	_{p=0.747 n=6}
_{Emit Time}	_{8.40s (± 0.50%)}	_{8.44s (± 0.67%)}	_~	_8.36s	_8.53s	_{p=0.198 n=6}
_{Total Time}	_{22.28s (± 0.32%)}	_{22.31s (± 0.27%)}	_~	_22.23s	_22.40s	_{p=0.470 n=6}
_{Compiler-Unions - node (v18.15.0, x64)}
_{Memory used}	_{192,896k (± 0.96%)}	_{191,654k (± 0.02%)}	_~	_191,620k	_191,711k	_{p=0.065 n=6}
_{Parse Time}	_{2.03s (± 1.11%)}	_{2.02s (± 1.11%)}	_~	_2.00s	_2.06s	_{p=0.285 n=6}
_{Bind Time}	_{1.07s (± 1.02%)}	_{1.06s (± 1.39%)}	_~	_1.04s	_1.08s	_{p=0.360 n=6}
_{Check Time}	_{13.83s (± 0.27%)}	_{13.83s (± 0.36%)}	_~	_13.75s	_13.89s	_{p=1.000 n=6}
_{Emit Time}	_{3.89s (± 0.39%)}	_{3.87s (± 0.55%)}	_~	_3.84s	_3.89s	_{p=0.252 n=6}
_{Total Time}	_{20.81s (± 0.20%)}	_{20.78s (± 0.25%)}	_~	_20.72s	_20.85s	_{p=0.295 n=6}
_{Monaco - node (v18.15.0, x64)}
_{Memory used}	_{347,692k (± 0.00%)}	_{347,708k (± 0.00%)}	_{+16k (+ 0.00%)}	_347,686k	_347,724k	_{p=0.045 n=6}
_{Parse Time}	_{2.97s (± 0.51%)}	_{2.98s (± 0.94%)}	_~	_2.94s	_3.01s	_{p=0.871 n=6}
_{Bind Time}	_{1.06s (± 0.49%)}	_{1.07s (± 0.97%)}	_~	_1.05s	_1.08s	_{p=0.437 n=6}
_{Check Time}	_{8.21s (± 0.48%)}	_{8.20s (± 0.39%)}	_~	_8.15s	_8.23s	_{p=1.000 n=6}
_{Emit Time}	_{4.83s (± 0.24%)}	_{4.84s (± 0.16%)}	_~	_4.83s	_4.85s	_{p=0.136 n=6}
_{Total Time}	_{17.08s (± 0.19%)}	_{17.08s (± 0.33%)}	_~	_16.99s	_17.13s	_{p=0.629 n=6}
_{TFS - node (v18.15.0, x64)}
_{Memory used}	_{302,567k (± 0.01%)}	_{302,573k (± 0.00%)}	_~	_302,553k	_302,599k	_{p=0.936 n=6}
_{Parse Time}	_{2.00s (± 0.88%)}	_{2.01s (± 0.83%)}	_~	_1.99s	_2.03s	_{p=0.564 n=6}
_{Bind Time}	_{0.98s (± 1.12%)}	_{0.98s (± 0.53%)}	_~	_0.97s	_0.98s	_{p=0.784 n=6}
_{Check Time}	_{6.30s (± 0.57%)}	_{6.31s (± 0.50%)}	_~	_6.26s	_6.35s	_{p=0.571 n=6}
_{Emit Time}	_{3.60s (± 0.45%)}	_{3.60s (± 0.35%)}	_~	_3.58s	_3.61s	_{p=0.681 n=6}
_{Total Time}	_{12.88s (± 0.35%)}	_{12.89s (± 0.27%)}	_~	_12.83s	_12.93s	_{p=0.520 n=6}
_{material-ui - node (v18.15.0, x64)}
_{Memory used}	_{510,565k (± 0.01%)}	_{510,560k (± 0.01%)}	_~	_510,519k	_510,616k	_{p=0.689 n=6}
_{Parse Time}	_{3.19s (± 0.87%)}	_{3.20s (± 0.78%)}	_~	_3.17s	_3.24s	_{p=0.806 n=6}
_{Bind Time}	_{1.17s (± 0.35%)}	_{1.18s (± 1.07%)}	_~	_1.17s	_1.20s	_{p=0.057 n=6}
_{Check Time}	_{20.50s (± 0.31%)}	_{20.46s (± 0.39%)}	_~	_20.32s	_20.56s	_{p=0.575 n=6}
_{Emit Time}	_{0.00s (± 0.00%)}	_{0.00s (± 0.00%)}	_~	_0.00s	_0.00s	_{p=1.000 n=6}
_{Total Time}	_{24.86s (± 0.29%)}	_{24.84s (± 0.35%)}	_~	_24.70s	_24.94s	_{p=0.936 n=6}
_{mui-docs - node (v18.15.0, x64)}
_{Memory used}	_{1,742,689k (± 0.00%)}	_{1,742,708k (± 0.00%)}	_~	_1,742,649k	_1,742,786k	_{p=0.575 n=6}
_{Parse Time}	_{7.84s (± 0.41%)}	_{7.86s (± 0.82%)}	_~	_7.79s	_7.98s	_{p=0.936 n=6}
_{Bind Time}	_{2.73s (± 0.45%)}	_{2.73s (± 0.19%)}	_~	_2.72s	_2.73s	_{p=0.672 n=6}
_{Check Time}	_{66.44s (± 0.73%)}	_{66.39s (± 0.24%)}	_~	_66.16s	_66.55s	_{p=0.873 n=6}
_{Emit Time}	_{0.15s (± 3.53%)}	_{0.15s (± 3.53%)}	_~	_0.15s	_0.16s	_{p=1.000 n=6}
_{Total Time}	_{77.17s (± 0.62%)}	_{77.13s (± 0.23%)}	_~	_76.82s	_77.28s	_{p=0.936 n=6}
_{self-build-src - node (v18.15.0, x64)}
_{Memory used}	_{2,301,244k (± 0.03%)}	_{2,302,560k (± 0.03%)}	_{+1,316k (+ 0.06%)}	_2,301,700k	_2,303,415k	_{p=0.020 n=6}
_{Parse Time}	_{5.00s (± 1.11%)}	_{5.00s (± 1.07%)}	_~	_4.92s	_5.07s	_{p=1.000 n=6}
_{Bind Time}	_{1.88s (± 0.99%)}	_{1.90s (± 2.73%)}	_~	_1.85s	_2.00s	_{p=0.333 n=6}
_{Check Time}	_{33.65s (± 0.32%)}	_{33.65s (± 0.43%)}	_~	_33.37s	_33.78s	_{p=0.936 n=6}
_{Emit Time}	_{2.63s (± 2.80%)}	_{2.62s (± 2.14%)}	_~	_2.52s	_2.66s	_{p=0.810 n=6}
_{Total Time}	_{43.17s (± 0.46%)}	_{43.18s (± 0.36%)}	_~	_42.96s	_43.42s	_{p=0.810 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_{Memory used}	_{2,376,842k (± 0.05%)}	_{2,377,496k (± 0.06%)}	_~	_2,375,434k	_2,379,236k	_{p=0.378 n=6}
_{Parse Time}	_{7.71s (± 0.54%)}	_{7.62s (± 0.74%)}	_{-0.09s (- 1.19%)}	_7.52s	_7.69s	_{p=0.020 n=6}
_{Bind Time}	_{2.50s (± 0.55%)}	_{2.51s (± 0.82%)}	_~	_2.48s	_2.54s	_{p=0.250 n=6}
_{Check Time}	_{49.50s (± 0.63%)}	_{49.34s (± 0.35%)}	_~	_49.10s	_49.53s	_{p=0.471 n=6}
_{Emit Time}	_{3.88s (± 2.04%)}	_{4.05s (± 5.99%)}	_~	_3.77s	_4.33s	_{p=0.336 n=6}
_{Total Time}	_{63.59s (± 0.54%)}	_{63.53s (± 0.63%)}	_~	_62.87s	_64.09s	_{p=0.810 n=6}
_{self-compiler - node (v18.15.0, x64)}
_{Memory used}	_{418,308k (± 0.01%)}	_{418,338k (± 0.01%)}	_~	_418,299k	_418,385k	_{p=0.261 n=6}
_{Parse Time}	_{3.38s (± 0.64%)}	_{3.37s (± 0.71%)}	_~	_3.33s	_3.40s	_{p=0.332 n=6}
_{Bind Time}	_{1.30s (± 1.15%)}	_{1.32s (± 1.47%)}	_~	_1.29s	_1.34s	_{p=0.220 n=6}
_{Check Time}	_{17.82s (± 0.41%)}	_{17.83s (± 0.38%)}	_~	_17.75s	_17.91s	_{p=0.575 n=6}
_{Emit Time}	_{1.36s (± 0.90%)}	_{1.38s (± 1.45%)}	_~	_1.36s	_1.41s	_{p=0.251 n=6}
_{Total Time}	_{23.88s (± 0.35%)}	_{23.90s (± 0.40%)}	_~	_23.76s	_24.01s	_{p=0.686 n=6}
_{vscode - node (v18.15.0, x64)}
_{Memory used}	_{2,906,112k (± 0.00%)}	_{2,906,112k (± 0.00%)}	_~	_2,906,053k	_2,906,174k	_{p=1.000 n=6}
_{Parse Time}	_{13.01s (± 0.38%)}	_{12.98s (± 0.40%)}	_~	_12.92s	_13.05s	_{p=0.686 n=6}
_{Bind Time}	_{4.08s (± 0.26%)}	_{4.07s (± 0.39%)}	_~	_4.06s	_4.10s	_{p=0.508 n=6}
_{Check Time}	_{71.35s (± 0.57%)}	_{71.46s (± 0.20%)}	_~	_71.22s	_71.56s	_{p=0.228 n=6}
_{Emit Time}	_{19.32s (± 0.94%)}	_{19.41s (± 0.70%)}	_~	_19.19s	_19.55s	_{p=0.470 n=6}
_{Total Time}	_{107.76s (± 0.45%)}	_{107.92s (± 0.20%)}	_~	_107.60s	_108.14s	_{p=0.298 n=6}
_{webpack - node (v18.15.0, x64)}
_{Memory used}	_{408,657k (± 0.01%)}	_{408,672k (± 0.03%)}	_~	_408,558k	_408,923k	_{p=0.689 n=6}
_{Parse Time}	_{3.87s (± 0.56%)}	_{3.86s (± 0.68%)}	_~	_3.83s	_3.90s	_{p=0.808 n=6}
_{Bind Time}	_{1.67s (± 0.70%)}	_{1.67s (± 0.93%)}	_~	_1.65s	_1.69s	_{p=1.000 n=6}
_{Check Time}	_{16.68s (± 0.09%)}	_{16.64s (± 0.25%)}	_~	_16.58s	_16.70s	_{p=0.063 n=6}
_{Emit Time}	_{0.00s (± 0.00%)}	_{0.00s (± 0.00%)}	_~	_0.00s	_0.00s	_{p=1.000 n=6}
_{Total Time}	_{22.22s (± 0.08%)}	_{22.17s (± 0.29%)}	_~	_22.09s	_22.27s	_{p=0.092 n=6}
_{xstate - node (v18.15.0, x64)}
_{Memory used}	_{670,797k (± 0.01%)}	_{670,818k (± 0.02%)}	_~	_670,670k	_671,080k	_{p=0.936 n=6}
_{Parse Time}	_{4.98s (± 0.82%)}	_{4.96s (± 0.88%)}	_~	_4.90s	_5.02s	_{p=0.377 n=6}
_{Bind Time}	_{2.30s (± 0.55%)}	_{2.30s (± 0.93%)}	_~	_2.27s	_2.32s	_{p=0.683 n=6}
_{Check Time}	_{4.22s (± 1.04%)}	_{4.24s (± 0.35%)}	_~	_4.23s	_4.26s	_{p=0.287 n=6}
_{Emit Time}	_{0.03s (± 0.00%)}	_{0.03s (±12.88%)}	_~	_0.03s	_0.04s	_{p=0.405 n=6}
_{Total Time}	_{11.54s (± 0.56%)}	_{11.54s (± 0.41%)}	_~	_11.47s	_11.60s	_{p=1.000 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

Angular - node (v18.15.0, x64)
Compiler-Unions - node (v18.15.0, x64)
Monaco - node (v18.15.0, x64)
TFS - node (v18.15.0, x64)
material-ui - node (v18.15.0, x64)
mui-docs - node (v18.15.0, x64)
self-build-src - node (v18.15.0, x64)
self-build-src-public-api - node (v18.15.0, x64)
self-compiler - node (v18.15.0, x64)
vscode - node (v18.15.0, x64)
webpack - node (v18.15.0, x64)
xstate - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

tsserver

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-UnionsTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,832ms (± 0.88%)}	_{2,845ms (± 0.78%)}	_~	_2,810ms	_2,864ms	_{p=0.335 n=6}
_{Req 2 - geterr}	_{6,045ms (± 1.72%)}	_{6,047ms (± 0.61%)}	_~	_5,997ms	_6,089ms	_{p=0.471 n=6}
_{Req 3 - references}	_{343ms (± 1.04%)}	_{360ms (± 9.00%)}	_~	_344ms	_426ms	_{p=0.054 n=6}
_{Req 4 - navto}	_{285ms (± 6.72%)}	_{289ms (± 8.08%)}	_~	_276ms	_336ms	_{p=0.517 n=6}
_{Req 5 - completionInfo count}	_{1,357 (± 0.00%)}	_{1,357 (± 0.00%)}	_~	_1,357	_1,357	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{105ms (± 9.48%)}	_{109ms (± 7.33%)}	_~	_99ms	_122ms	_{p=0.285 n=6}
_{CompilerTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,478ms (± 1.24%)}	_{2,514ms (± 0.99%)}	_~	_2,482ms	_2,540ms	_{p=0.092 n=6}
_{Req 2 - geterr}	_{3,746ms (± 0.28%)}	_{3,750ms (± 0.20%)}	_~	_3,738ms	_3,761ms	_{p=0.469 n=6}
_{Req 3 - references}	_{309ms (± 1.65%)}	_{308ms (± 1.70%)}	_~	_301ms	_312ms	_{p=0.746 n=6}
_{Req 4 - navto}	_{229ms (± 0.24%)}	_{228ms (± 0.18%)}	_~	_228ms	_229ms	_{p=0.282 n=6}
_{Req 5 - completionInfo count}	_{1,519 (± 0.00%)}	_{1,519 (± 0.00%)}	_~	_1,519	_1,519	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{84ms (± 0.00%)}	_{83ms (± 1.96%)}	_~	_80ms	_84ms	_{p=0.405 n=6}
_{xstateTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{3,832ms (± 0.48%)}	_{3,827ms (± 0.72%)}	_~	_3,803ms	_3,878ms	_{p=0.572 n=6}
_{Req 2 - geterr}	_{2,178ms (± 0.57%)}	_{2,183ms (± 0.84%)}	_~	_2,160ms	_2,204ms	_{p=0.470 n=6}
_{Req 3 - references}	_{134ms (± 2.13%)}	_{195ms (± 1.89%)}	_{🔻+61ms (+45.33%)}	_191ms	_199ms	_{p=0.005 n=6}
_{Req 4 - navto}	_{527ms (± 0.74%)}	_{543ms (± 2.10%)}	_{+15ms (+ 2.91%)}	_526ms	_554ms	_{p=0.036 n=6}
_{Req 5 - completionInfo count}	_{2,079 (± 0.00%)}	_{2,079 (± 0.00%)}	_~	_2,079	_2,079	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{432ms (± 0.90%)}	_{419ms (± 0.85%)}	_{-13ms (- 2.94%)}	_416ms	_425ms	_{p=0.006 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

CompilerTSServer - node (v18.15.0, x64)
Compiler-UnionsTSServer - node (v18.15.0, x64)
xstateTSServer - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

startup

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{tsc-startup - node (v18.15.0, x64)}
_{Execution time}	_{222.77ms (± 0.16%)}	_{222.78ms (± 0.19%)}	_~	_220.81ms	_230.88ms	_{p=0.523 n=600}
_{tsserver-startup - node (v18.15.0, x64)}
_{Execution time}	_{227.06ms (± 0.16%)}	_{227.20ms (± 0.16%)}	_{+0.14ms (+ 0.06%)}	_225.86ms	_233.28ms	_{p=0.000 n=600}
_{tsserverlibrary-startup - node (v18.15.0, x64)}
_{Execution time}	_{272.35ms (± 0.29%)}	_{271.94ms (± 0.30%)}	_{-0.41ms (- 0.15%)}	_265.19ms	_283.16ms	_{p=0.000 n=600}
_{typescript-startup - node (v18.15.0, x64)}
_{Execution time}	_{331.83ms (± 0.31%)}	_{331.64ms (± 0.30%)}	_{-0.19ms (- 0.06%)}	_323.33ms	_338.98ms	_{p=0.001 n=600}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

tsc-startup - node (v18.15.0, x64)
tsserver-startup - node (v18.15.0, x64)
tsserverlibrary-startup - node (v18.15.0, x64)
typescript-startup - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

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jakebailey

This seems fine to me (though I don't know how to physically test it), though I think my main concern are API users who expect that closing a file actually frees its resources. I'm not sure if ts-eslint actually closes any files, though.

typescript-bot assigned sheetalkamat Feb 22, 2024

typescript-bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Feb 22, 2024

sheetalkamat force-pushed the fileChange branch from 1ec1e98 to 7e9f5f7 Compare February 22, 2024 22:59

sheetalkamat force-pushed the fileChange branch from 7e9f5f7 to 28182a1 Compare March 7, 2024 18:30

sheetalkamat force-pushed the fileChange branch from 28182a1 to ba47b73 Compare March 27, 2024 22:01

sheetalkamat mentioned this pull request Apr 10, 2024

[WIP] File change retaining projects #58144

Closed

sheetalkamat added 3 commits April 10, 2024 10:48

Some extra tests before the change

14b7c8c

Refactor so that its easier to update later

4c1fa52

Defer removing configured project on remove

784e0ef

sheetalkamat force-pushed the fileChange branch from ba47b73 to 9c2e8aa Compare April 10, 2024 17:50

Cache deleted scriptinfos till they are orphan

bd10117

sheetalkamat force-pushed the fileChange branch from 9c2e8aa to bd10117 Compare April 10, 2024 18:05

sheetalkamat marked this pull request as ready for review April 10, 2024 18:10

sheetalkamat requested review from andrewbranch and jakebailey April 10, 2024 18:10

jakebailey reviewed Apr 10, 2024

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jakebailey reviewed Apr 10, 2024

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jakebailey approved these changes Apr 11, 2024

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sheetalkamat force-pushed the fileChange branch from bd10117 to e7d83a9 Compare April 12, 2024 17:20

markAsDirty and isOrphan are internal

c6bfa10

sheetalkamat force-pushed the fileChange branch from e7d83a9 to c6bfa10 Compare April 12, 2024 17:30

sheetalkamat merged commit 4e29496 into main Apr 12, 2024

sheetalkamat deleted the fileChange branch April 12, 2024 17:43

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Keep scriptInfo and project alive even after file delete till next file open #57492

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tsc

tsserver

startup

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Keep scriptInfo and project alive even after file delete till next file open #57492

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jakebailey commented Apr 10, 2024

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typescript-bot commented Apr 10, 2024

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typescript-bot commented Apr 10, 2024

tsc

tsserver

startup

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sheetalkamat commented Feb 22, 2024 •

edited

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typescript-bot commented Apr 10, 2024 •

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