Content Understanding GA SDK for Java by changjian-wang · Pull Request #47952 · Azure/azure-sdk-for-java

changjian-wang · 2026-02-10T02:41:15Z

PR #47952 Review Guide: Content Understanding GA SDK for Java

Executive Summary

This PR introduces the brand new GA release of the azure-ai-contentunderstanding Java SDK. Since this is a new package, all 191 files are additions (+43,291 lines). The package includes:

Customizations (1 file, 1,982 lines): ContentUnderstandingCustomizations.java — JavaParser AST transformations applied post-generation. This is the source of truth for all hand-authored classes and code modifications.
Clients (6 files, 4,668 lines): Sync/async clients, builder, service version — generated then customized.
Models (75 files, 12,703 lines): Public model classes — mostly generated, 7 are hand-authored via customization.
Implementation (11 files, 7,619 lines): Internal REST client, polling strategies, request models — fully generated.
Samples (32 files, 6,249 lines): 16 scenarios × sync + async pairs, plus binary resources.
Tests (38 files, 8,412 lines): 3 unit tests + 34 recorded sample tests + test base class.
Infrastructure (16 files, 1,238 lines): CI, Bicep, CODEOWNERS, README, CHANGELOG, Maven config.

Key customizations in `ContentUnderstandingCustomizations.java`:

Hand-authored model classes: ContentSource, DocumentSource, AudioVisualSource, PointF, RectangleF, Rectangle, ContentRange
Typed getValue() on all ContentField subclasses
Duration getters wrapping raw millisecond fields on time-based models
Flattened convenience method parameters (no wrapper request objects)
Internal models hidden from public API

Changes This Week (since Monday Feb 24)

If you've already reviewed an earlier version of this PR, here's what changed this week across 18 commits touching 95+ files. The changes fall into 6 categories:

1. ContentSource hierarchy (new feature)

Added hand-authored ContentSource, DocumentSource, AudioVisualSource, PointF, RectangleF, Rectangle classes with parsing logic. Added getSources() to ContentField (consistent with .NET Sources property).

customization/.../ContentUnderstandingCustomizations.java — added ContentSource, DocumentSource, AudioVisualSource, PointF, RectangleF, Rectangle classes + getSources() customization
models/ContentSource.java, DocumentSource.java, AudioVisualSource.java — generated output of the above classes
models/PointF.java, RectangleF.java, Rectangle.java — generated output of the above geometry types
models/ContentField.java — added getSources() method
tests/ContentSourceTest.java — new unit tests

2. Duration property customizations (new feature)

Hid raw *Ms() getters (package-private) on AudioVisualContent, AudioVisualContentSegment, TranscriptPhrase, TranscriptWord. Added Duration-returning getters (getStartTime(), getEndTime(), etc.). Removed getTimeMs() from AudioVisualSource.

customization/.../ContentUnderstandingCustomizations.java — customizeDurationProperties() method
models/AudioVisualContent.java — hidden getStartTimeMs/getEndTimeMs/getCameraShotTimesMs/getKeyFrameTimesMs, added Duration getters
models/AudioVisualContentSegment.java, TranscriptPhrase.java, TranscriptWord.java — same pattern
models/ContentRange.java — Duration-based factory methods (timeRange, timeRangeFrom)
tests/DurationCustomizationTest.java, ContentRangeTest.java — new tests

3. Type renames from TypeSpec GA update (bulk rename)

AnalyzeInput → AnalysisInput, AnalyzeResult → AnalysisResult, MediaContent → AnalysisContent, plus Content-prefixed field types. This touched 70 files but is mostly mechanical find-and-replace across models, samples, and tests.

models/Analysis*.java, Content*Field.java — renamed types
All Sample*.java and Sample*Test.java — updated type references
tsp-location.yaml — updated TypeSpec commit

4. Property renaming & parameter fixes

ContentAnalyzerConfig.set*Enabled() — property rename (touched 36 files: config model, all samples using analyzers, all corresponding tests)
*Request1 bogus parameter name fix — cleaned up AnalyzeRequest1/GrantCopyAuthorizationRequest1 parameter names in client convenience methods

5. README update

README.md — fixed AnalyzeResult → AnalysisResult (2 occurrences)

Files to focus on if you've already reviewed earlier

Priority	Files	Reason
High	`ContentUnderstandingCustomizations.java`	Major additions: ContentSource hierarchy, Duration customizations, parameter fixes
High	`ContentSource.java`, `DocumentSource.java`, `AudioVisualSource.java`	New hand-authored parsing classes
High	`ContentField.java`	Added `getSources()`
Medium	`ContentRange.java`	New Duration-based factory methods
Medium	`PointF.java`, `RectangleF.java`, `Rectangle.java`	New geometry types
Medium	`ContentSourceTest.java`, `DurationCustomizationTest.java`, `ContentRangeTest.java`	New unit tests
Low	All other model/sample/test changes	Mechanical renames from TypeSpec update

P0 — Must Review (Public API, customizations, README)

File	Lines	Reason
`customization/.../ContentUnderstandingCustomizations.java`	1,982	Source of truth for all post-gen customizations — AST transforms, field value accessors, Duration wrappers. Contains 7 hand-authored classes as string constants — review their output files in `models/` instead (see P2 section).
`README.md`	460	User-facing documentation — getting started, authentication, key concepts, code examples, troubleshooting
`.../ContentUnderstandingClient.java`	2,109	Sync client — public API surface with convenience methods for analyze, CRUD analyzers, copy, result files
`.../ContentUnderstandingAsyncClient.java`	2,141	Async client — mirrors sync client with `Mono`/`Flux` return types
`.../ContentUnderstandingClientBuilder.java`	356	Client builder — credential, endpoint, pipeline, retry, service version config
`.../ContentUnderstandingServiceVersion.java`	40	API version enum — should have `V2025_11_01`
`.../models/ContentField.java`	283	Base field class — polymorphic deserialization hub for all content field types
`.../models/AnalysisResult.java`	199	Analysis result — top-level response from analyze operations
`.../models/ContentAnalyzerConfig.java`	754	Analyzer config — complex model for creating/updating analyzers with field schemas
`CHANGELOG.md`	12	Release notes — verify correct version and feature list

Total P0: 10 files, ~8,336 lines

P1 — Should Review (Key samples, key models, test infra, CI config)

File	Lines	Reason
`Sample02_AnalyzeUrl.java`	284	Flagship sample — full analyze workflow with field extraction and content traversal
`Sample03_AnalyzeInvoice.java`	191	Invoice extraction sample — common customer scenario
`Sample04_CreateAnalyzer.java`	251	Custom analyzer sample — shows analyzer creation with field schema
`Sample16_CreateAnalyzerWithLabels.java`	248	Labels sample — new GA feature for labeled training data
`Sample14_CopyAnalyzer.java`	224	Copy analyzer sample — cross-resource copy workflow
`.../models/ContentAnalyzer.java`	603	Analyzer model — core entity with status, config, usage details
`.../models/AnalysisContent.java`	300	Content base class — polymorphic parent of `DocumentContent` / `AudioVisualContent`
`.../models/DocumentContent.java`	353	Document content — pages, tables, figures, paragraphs
`.../models/AudioVisualContent.java`	338	AV content — transcript segments, phrases
`.../models/ContentFieldDefinition.java`	524	Field definition — detailed field config with description, examples
`.../models/ContentFieldSchema.java`	286	Field schema — defines field types in analyzer config
`ci.yml`	46	CI pipeline — verify correct package references and test configuration
`test-resources.bicep`	139	Azure deployment — Bicep template for test resources
`test-resources-post.ps1`	414	Post-deploy script — model deployments and prebuilt analyzer setup
`pom.xml` (package-level)	75	Maven config — dependencies, plugins, version

Total P1: 15 files, ~4,276 lines

P2 — Skim / Low Priority

Hand-authored model classes (7 files, 909 lines)

These classes are written as string constants inside ContentUnderstandingCustomizations.java and emitted as files during code generation. Review the generated output files instead — they are real .java files with full syntax highlighting, which is much easier to read than the escaped string constants in the customization class:

Review this file (in `models/`)	Lines	Purpose
`ContentSource.java`	146	Base content source — `parse()`, `toRawString()`, abstract hierarchy
`DocumentSource.java`	150	Document source — page number, polygon, bounding box parsing
`AudioVisualSource.java`	147	AV source — time (Duration), bounding box parsing
`ContentRange.java`	211	Range builder — `page()`, `pages()`, `timeRange(Duration)`, `combine()`
`PointF.java`	68	Float point (x, y)
`RectangleF.java`	95	Float rectangle (4 corners)
`Rectangle.java`	92	Integer rectangle (4 corners)

Tip: The source of truth is the string constants in ContentUnderstandingCustomizations.java, but the content is identical to the output files above. Reviewing the output files is the intended workflow — the customization file is just the delivery mechanism.

Remaining generated models (68 files, ~11,794 lines)

All other files in models/. Auto-generated from TypeSpec — spot-check a few for correctness but full review is low value.

Generated implementation (11 files, 7,619 lines)

ContentUnderstandingClientImpl.java (6,574 lines) is the main REST client. Polling strategies and helpers are also generated. Low review value.

Remaining samples (27 files, ~5,051 lines)

Sync + async pairs for: Sample00_UpdateDefaults, Sample01_AnalyzeBinary, Sample05_CreateClassifier, Sample06_GetAnalyzer, Sample08_UpdateAnalyzer, Sample09_DeleteAnalyzer, Sample10_AnalyzeConfigs, Sample11_AnalyzeReturnRawJson, Sample12_GetResultFile, Sample13_DeleteResult, Sample15_GrantCopyAuth, plus async variants of P1 samples.

Tests (38 files, 8,412 lines)

3 unit tests: ContentRangeTest (185), ContentSourceTest (279), DurationCustomizationTest (146)
34 sample tests: Recorded playback tests mirroring each sample (sync + async)
ContentUnderstandingClientTestBase.java (73): Shared test setup

Infrastructure (low-churn files)

File	Lines	Notes
`.github/CODEOWNERS`	+6	Adds contentunderstanding ownership
`eng/versioning/version_client.txt`	+1	Registers package version
`pom.xml` (root)	+1	Adds module reference
`pom.xml` (service)	15	Service-level parent POM
`tests.yml`	14	Test pipeline config
`tsp-location.yaml`	4	TypeSpec commit reference
`.gitignore`	6	Standard ignores
`cspell.json`	18	Spell check word list
`assets.json`	6	Test recording asset reference
`customization/pom.xml`	21	Customization build config
`src/main/resources/` (3 files)	135	API review metadata, package properties

Sample resources (binary, not reviewable)

mixed_financial_docs.pdf, sample_document_features.pdf, sample_invoice.pdf
receipt_labels/ — 2 receipt images + labels JSON + result JSON

Review Tips

Start with ContentUnderstandingCustomizations.java — this is the most critical file. It defines all hand-authored classes and AST transformations. Understanding it makes the rest of the PR much clearer.
Compare sync/async clients — they should mirror each other. Review one in detail, then spot-check the other for consistency.
Skip generated model files unless a specific model looks wrong — they are regenerated from TypeSpec on every tsp-client update.
Samples come in sync/async pairs — review the sync version, then verify the async version follows the same pattern.
Test files mirror samples — each sample has a corresponding recorded test. Verify test assertions are meaningful.

…', API Version: 2025-11-01, SDK Release Type: beta, and CommitSHA: 'd0cd556bd91d2dda700e983c0d253fa025b324c0' in SpecRepo: 'https://github.com/Azure/azure-rest-api-specs' Pipeline run: https://dev.azure.com/azure-sdk/internal/_build/results?buildId=5634426 Refer to https://eng.ms/docs/products/azure-developer-experience/develop/sdk-release/sdk-release-prerequisites to prepare for SDK release.

…entunderstanding-5634426

…ca4b0e1d5ed1c

…nts in Content Understanding SDK

… from .NET SDK - Sample00_ConfigureDefaults: Demonstrates configuration management (get/update defaults) - Sample01_AnalyzeBinary: Binary PDF analysis from local file - Sample02_AnalyzeUrl: Analyze documents from URL - Sample03_AnalyzeInvoice: Extract structured invoice fields with nested objects and arrays - Sample04_CreateAnalyzer: Create and use custom analyzer with field schema (Extract/Generate/Classify methods) Key features: - All samples use DefaultAzureCredentialBuilder for authentication - Environment variable based configuration (ENDPOINT) - Comprehensive JUnit 5 tests with assertions - GitHub public URLs for test data - Proper field access patterns with type casting (ContentField, StringField, NumberField, ObjectField, ArrayField) - All tests passing (6/6 = 100% success rate) Technical implementation: - Fixed API differences from C# SDK (ContentSpan, ContentField, 5-parameter beginAnalyze) - Proper null checking and type casting for all field access - Detailed validation assertions for all document properties - Clean resource management with @AfterEach cleanup Module-info.java formatting cleanup included.

- Sample05_CreateClassifier: Create classifier analyzer with multiple classification fields (document_type, industry, urgency) - Sample06_GetAnalyzer: Get analyzer information including configuration and field schema Key features: - Sample05: Demonstrates classification-only analyzer with 3 classifiers - Sample06: Shows how to retrieve and inspect analyzer properties including prebuilt analyzers - Fixed API usage: getAnalyzerId(), getCreatedAt(), getLastModified At() instead of getId(), getCreatedDateTime(), getUpdatedDateTime() - Comprehensive field schema inspection with all 31 prebuilt-invoice fields - All tests passing with real Azure service

- Sample07_ListAnalyzers: List and filter all available analyzers (prebuilt and custom) * testListAnalyzersAsync: Lists all 134 analyzers (87 prebuilt, 47 custom) * testListReadyAnalyzersAsync: Filters for ready analyzers only - Sample08_UpdateAnalyzer: Update existing analyzer properties * Demonstrates updating description, configuration, and field schema * Uses @beforeeach to create test analyzer and @AfterEach for cleanup * Shows how to add new fields while preserving existing ones All tests passing with real Azure service

Fixed Sample08_UpdateAnalyzer to avoid 409 conflict error: - Delete existing analyzer before recreating with updated configuration - Added note about using updateAnalyzerWithResponse for atomic updates in production - All 12 tests now passing (Sample00-08 with multiple test methods) Test results: 12/12 passed (100% success rate)

…eAnalyzerWithLabels

…iables and Improve Test Patterns - Updated environment variable names from "ENDPOINT" and "CONTENTUNDERSTANDING_API_KEY" to "CONTENTUNDERSTANDING_ENDPOINT" and "AZURE_CONTENT_UNDERSTANDING_KEY" across multiple sample test files. - Modified sample tests to load local files instead of using publicly accessible URLs for document analysis. - Enhanced assertions and logging for better clarity and debugging. - Improved API usage patterns in tests for creating, copying, and deleting analyzers, including async patterns. - Added model mappings for analyzers in relevant samples to demonstrate configuration capabilities.

…r Authentication

…ted responses

…e validation of source and copied analyzers

… Azure Credential Authentication - Updated Sample03_AnalyzeInvoice, Sample04_CreateAnalyzer, Sample05_CreateClassifier, Sample06_GetAnalyzer, Sample07_ListAnalyzers, Sample08_UpdateAnalyzer, Sample09_DeleteAnalyzer, Sample10_AnalyzeConfigs, Sample11_AnalyzeReturnRawJson, Sample12_GetResultFile, Sample13_DeleteResult, Sample14_CopyAnalyzer, Sample15_GrantCopyAuth, and Sample16_CreateAnalyzerWithLabels to include logic for initializing the Content Understanding client with either an API key or the Default Azure Credential. - Added assertions to verify client initialization in each sample. - Improved code readability and maintainability by consolidating client creation logic.

…Builder Initialization

- Sample12_GetResultFile: Demonstrates how to retrieve keyframe images from video analysis operations. - Sample13_DeleteResult: Shows how to delete analysis results after they are no longer needed. - Sample14_CopyAnalyzer: Illustrates how to copy an analyzer within the same resource. - Sample15_GrantCopyAuth: Demonstrates granting copy authorization for cross-resource analyzer copying. - Sample16_CreateAnalyzerWithLabels: Shows how to create an analyzer with labeled training data from Azure Blob Storage.

…erstanding SDK

…opment

@disabled

- Delete 13 @disabled test files (replaced by Sample tests) - Modify Sample00-Sample16 to extend ContentUnderstandingClientTestBase - Add testResourceNamer for reproducible random IDs in PLAYBACK mode - Remove problematic sanitizers (AZSDK2003, AZSDK2030, AZSDK3423, AZSDK3430, AZSDK3493) - Configure maven-surefire-plugin to include Sample*.java - Use AZURE_CONTENT_UNDERSTANDING_ENDPOINT env var (matches .NET naming)

Exclude src/samples/.../samples/Sample*.java standalone examples from test execution.

- Fixed URI mismatch issue where recorded URLs had double slashes (//contentunderstanding) - Updated assets.json to point to new recordings tag (3de1635cfc) - All 23 tests pass in PLAYBACK mode

…tag _41c669f1bc

...ntentunderstanding/src/main/java/com/azure/ai/contentunderstanding/models/ContentSource.java

...ontentunderstanding/src/main/java/com/azure/ai/contentunderstanding/models/ContentField.java

- Changed the visibility of the getSource method in ContentField to package-private and updated its implementation to use the new getSources method. - Updated ContentSource to rename parseSource to parseAll for clarity and adjusted related documentation. - Modified sample and test files to reflect the new source handling, demonstrating the use of getSources for typed access to content sources. - Enhanced sample outputs to provide detailed information about document sources, including page numbers and bounding boxes.

...-ai-contentunderstanding/customization/src/main/java/ContentUnderstandingCustomizations.java

weidongxu-microsoft

Typically, lib would be first released as a preview/beta? <-- as long as Arch is fine with 1.0.0

...-ai-contentunderstanding/customization/src/main/java/ContentUnderstandingCustomizations.java

… into cu_sdk/ga

for Azure/azure-sdk-for-java#47952 (comment) <img width="563" height="100" alt="image" src="https://github.com/user-attachments/assets/06192bff-0975-4ecb-9700-2601dbbdfa03" />

…t oepration Id - Removed the operationId field and its associated helper class, simplifying the model. - Updated PollingUtils and polling strategies to eliminate the need for operationId extraction. - Adjusted sample and test files to reflect changes in accessing operation ID using the getId() method instead of getOperationId(). - Enhanced documentation to clarify the new approach for retrieving operation IDs.

…tructor and updateDefaults methods - Made the ContentUnderstandingDefaults constructor public to allow the creation of instances in updateDefaults methods. - Added convenience methods for updateDefaults that accept typed objects instead of BinaryData, addressing limitations of the Java emitter. - Updated documentation to clarify the behavior of the new methods and the rationale behind the changes.

...t/java/com/azure/ai/contentunderstanding/tests/samples/Sample00_UpdateDefaultsAsyncTest.java

sdk/contentunderstanding/azure-ai-contentunderstanding/cspell.json

weidongxu-microsoft

One may want to add a README.md in src/samples folder. E.g. https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/storage/azure-storage-blob/src/samples/README.md

This would help publish these samples to Azure Sample Browser.

This is likely not required though.

sdk/contentunderstanding/azure-ai-contentunderstanding/pom.xml

Replace 'import static org.junit.jupiter.api.Assertions.*' with explicit imports (assertEquals, assertNotNull, assertTrue, etc.) across all 37 test and sample test files per checkstyle requirements. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Remove Dtest, Dsurefire, dotenv, DAZURE, pytest - none are used in this project. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Add src/samples/README.md following the Azure SDK for Java convention to enable publishing samples to the Azure Sample Browser. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

… into cu_sdk/ga

azure-sdk and others added 30 commits December 3, 2025 22:19

Merge remote-tracking branch 'origin/main' into sdkauto/azure-ai-cont…

876170a

…entunderstanding-5634426

SDK-GEN: Re-generate SDK based on commmit e11e268a65224bd90f3aa450d44…

c8df6ad

…ca4b0e1d5ed1c

Add sample tests for configuring defaults and analyzing binary docume…

72993cc

…nts in Content Understanding SDK

[ContentUnderstanding] Add Sample09_DeleteAnalyzer

3495c1f

[ContentUnderstanding] Fix Sample09 and remove incompatible Sample10-16

5be60e5

Add Sample10_AnalyzeConfigs and Sample11_AnalyzeReturnRawJson

fc4a36b

Add Sample12_GetResultFile and Sample13_DeleteResult

a101b28

Add Sample14_CopyAnalyzer, Sample15_GrantCopyAuth, and Sample16_Creat…

cbdc2ad

…eAnalyzerWithLabels

Update Content Understanding Samples to Use DefaultAzureCredential fo…

984b4df

…r Authentication

Update analyzer copy endpoint to use simplified path and expand expec…

24a9ff7

…ted responses

Enhance verification steps in Sample14_CopyAnalyzer to ensure accurat…

5fefcc3

…e validation of source and copied analyzers

Refactor Content Understanding Samples to Use Single Line for Client …

aad4f2e

…Builder Initialization

Update assets.json to include specific tag for content understanding SDK

fedf711

Update sample file paths and add new sample documents for content und…

dd8ebf3

…erstanding SDK

Disable JaCoCo coverage and Checkstyle for beta.1 - tests under devel…

8467d24

…opment

Fix JaCoCo coverage values: use 0 instead of 0.00

420cb89

Add UPCA and UPCE barcode terms to spelling dictionary

e2af7aa

Fix surefire include pattern to only match generated/Sample*.java

bea9203

Exclude src/samples/.../samples/Sample*.java standalone examples from test execution.

Fix double-slash issue in test recordings for Content Understanding

61fc2a3

- Fixed URI mismatch issue where recorded URLs had double slashes (//contentunderstanding) - Updated assets.json to point to new recordings tag (3de1635cfc) - All 23 tests pass in PLAYBACK mode

Fix double-slash issue in test recordings: update assets.json to new …

7b55d95

…tag _41c669f1bc

Strip trailing slash from endpoint to prevent double-slash in URLs

760866c

bojunehsu reviewed Feb 27, 2026

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yungshinlintw and others added 2 commits February 27, 2026 18:08

[SDK-UPDATE] default polling interval to 3 seconds

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chienyuanchang force-pushed the cu_sdk/ga branch from c800758 to 2de1786 Compare February 28, 2026 00:30

chienyuanchang and others added 2 commits February 27, 2026 16:33

[SDK-UPDATE] default polling_interval to 3 seconds

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http-client-java, warning on not spread json-merge-patch payload microsoft/typespec#9844

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Merge branch 'cu_sdk/ga' of https://github.com/Azure/azure-sdk-for-java…

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… into cu_sdk/ga

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Remove Dtest, Dsurefire, dotenv, DAZURE, pytest - none are used in this project. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

PR: Remove JaCoCo coverage properties from pom.xml

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Content Understanding GA SDK for Java#47952

Content Understanding GA SDK for Java#47952
changjian-wang wants to merge 188 commits intomainfrom
cu_sdk/ga

changjian-wang commented Feb 10, 2026 •

edited by yungshinlintw

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changjian-wang commented Feb 10, 2026 • edited by yungshinlintw Loading Uh oh! There was an error while loading. Please reload this page.

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PR #47952 Review Guide: Content Understanding GA SDK for Java

Executive Summary

Key customizations in ContentUnderstandingCustomizations.java:

Changes This Week (since Monday Feb 24)

1. ContentSource hierarchy (new feature)

2. Duration property customizations (new feature)

3. Type renames from TypeSpec GA update (bulk rename)

4. Property renaming & parameter fixes

5. README update

Files to focus on if you've already reviewed earlier

P0 — Must Review (Public API, customizations, README)

P1 — Should Review (Key samples, key models, test infra, CI config)

P2 — Skim / Low Priority

Hand-authored model classes (7 files, 909 lines)

Remaining generated models (68 files, ~11,794 lines)

Generated implementation (11 files, 7,619 lines)

Remaining samples (27 files, ~5,051 lines)

Tests (38 files, 8,412 lines)

Infrastructure (low-churn files)

Sample resources (binary, not reviewable)

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changjian-wang commented Feb 10, 2026 •

edited by yungshinlintw

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Key customizations in `ContentUnderstandingCustomizations.java`: