feat(google_genai): apm and llmobs submissions for embed_content google-genai

[maxzhangdd]

MLOB-3048

This PR adds support for APM submissions as well as LLMObs submissions for calls to embed_content (sync and async versions) in Google's GenAI Python SDK.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

releasenotes/notes/google_genai_embed_content_submissions-5824ec6d6ce45895.yaml  @DataDog/apm-python
tests/snapshots/tests.contrib.google_genai.test_google_genai.test_google_genai_embed_content.json  @DataDog/apm-python
tests/snapshots/tests.contrib.google_genai.test_google_genai.test_google_genai_embed_content_error.json  @DataDog/apm-python
ddtrace/contrib/internal/google_genai/_utils.py                         @DataDog/ml-observability
ddtrace/contrib/internal/google_genai/patch.py                          @DataDog/ml-observability
ddtrace/llmobs/_constants.py                                            @DataDog/ml-observability
ddtrace/llmobs/_integrations/google_genai.py                            @DataDog/ml-observability
ddtrace/llmobs/_integrations/google_genai_utils.py                      @DataDog/ml-observability
tests/contrib/google_genai/conftest.py                                  @DataDog/ml-observability
tests/contrib/google_genai/test_google_genai.py                         @DataDog/ml-observability
tests/contrib/google_genai/test_google_genai_llmobs.py                  @DataDog/ml-observability
tests/contrib/google_genai/test_google_genai_patch.py                   @DataDog/ml-observability
tests/contrib/google_genai/utils.py                                     @DataDog/ml-observability

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 289 ± 4 ms.

The average import time from base is: 291 ± 4 ms.

The import time difference between this PR and base is: -2.0 ± 0.2 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.990 ms (0.69%)

ddtrace.bootstrap.sitecustomize 1.306 ms (0.45%)

ddtrace.bootstrap.preload 1.306 ms (0.45%)

ddtrace.internal.remoteconfig.client 0.651 ms (0.23%)

ddtrace 0.683 ms (0.24%)

ddtrace.internal._unpatched 0.035 ms (0.01%)

json 0.035 ms (0.01%)

json.decoder 0.035 ms (0.01%)

re 0.035 ms (0.01%)

enum 0.035 ms (0.01%)

types 0.035 ms (0.01%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-07-09 20:55:02

Comparing candidate commit cfa80de in PR branch maxzhang/google-genai-embedcontent with baseline commit 321f9b2 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 548 metrics, 2 unstable metrics.

[brettlangdon]

Snapshot files lgtm, approving for apm-python

[brettlangdon]

a changelog entry should be added for this change.

[Yun-Kim]

Small nits but otherwise LGTM once addressed!