docs(streaming): fix streaming output docstring examples

[uoparaji]

Related issue

Fixes #7285

Summary

Docstring-only fix for two public streaming wrapper classes in lib/crewai/src/crewai/types/streaming.py. The examples showed APIs that either silently do not stream (CrewStreamingOutput) or do not exist (FlowStreamingOutput).

• CrewStreamingOutput — the sync and async examples both called crew.kickoff(...) / crew.kickoff_for_each_async(...) without setting stream=True on the crew. Crew.kickoff only returns a CrewStreamingOutput when the crew is constructed with stream=True (lib/crewai/src/crewai/crew.py:1017, docs/edge/en/concepts/streaming.mdx:128); otherwise it returns a CrewOutput and the snippet does not stream. Updated both examples to construct the crew with stream=True.
• FlowStreamingOutput — the example called flow.kickoff_streaming() and flow.kickoff_streaming_async(); grep -rn "kickoff_streaming" lib/ confirms neither method exists. Flow-level streaming is actually exposed via Flow.kickoff with stream=True, which returns a StreamSession, not a FlowStreamingOutput (see lib/crewai/tests/test_streaming.py:424-435). FlowStreamingOutput is only referenced in internal type unions and instantiated directly with an iterator in tests. Replaced the misleading example with a note pointing users at Flow.kickoff / StreamSession.

Verification

• Tests added or updated for the changed behavior — N/A, docstring-only change; no runtime behavior modified.
• Relevant tests and quality checks pass locally — uv tool run --from ruff==0.15.1 ruff check and ruff format --check on the touched file both pass.

Additional context

lib/crewai/tests/test_streaming.py continues to exercise FlowStreamingOutput's streaming semantics by constructing it directly with an iterator — this PR does not change that path.

[uoparaji]

Note for triage: this PR was authored with the assistance of Claude Code. Per CONTRIBUTING.md the llm-generated label is required; I don't have permission to apply it from a fork PR, so flagging it here for a maintainer to add. (The linked issue #7285 already carries the label.)

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📝 Walkthrough

Walkthrough

The streaming docstrings now set stream=True for crew examples. Flow streaming examples now reference StreamSession, while FlowStreamingOutput documentation describes iterator-wrapper usage.

Changes

Streaming documentation

Layer / File(s)	Summary
Update streaming API examples lib/crewai/src/crewai/types/streaming.py	Crew examples construct crews with stream=True. Flow examples reference StreamSession and retain FlowStreamingOutput for wrappers built from existing iterators.

Suggested reviewers: vidit-ostwal

Merge Risk: ⚪ Minimal · up to 454b9

Streaming documentation now shows the required crew and flow streaming paths, reducing the likelihood that users follow unsupported examples. No current merge-blocking risk is identified.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely identifies the primary change: correcting streaming output docstring examples.
Description check	✅ Passed	The description includes the related issue, explains the documentation fixes, records verification results, and provides additional context. It matches the required template.
Linked Issues check	✅ Passed	The changes satisfy issue [#7285] by adding stream=True to Crew examples, removing nonexistent Flow methods, and documenting the supported Flow.kickoff streaming API.
Out of Scope Changes check	✅ Passed	The changes are limited to the targeted streaming docstring examples and related documentation. No unrelated runtime or API changes are included.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.

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Actionable comments posted: 1

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Inline comments:
In `@lib/crewai/src/crewai/types/streaming.py`:
- Line 589: Update the StreamSession documentation reference to clarify that
callers must configure the Flow with stream=True before invoking Flow.kickoff(),
since kickoff does not accept a stream argument.

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• lib/crewai/src/crewai/types/streaming.py

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[uoparaji]

@Vidit-Ostwal thanks for the review — pushed b80a57a restoring an Example: block on FlowStreamingOutput.

Rather than paste back the original snippet (which called flow.kickoff_streaming() / kickoff_streaming_async(), neither of which exists in the codebase — that was the bug this PR set out to fix), I wrote the example around the only pattern that actually produces a FlowStreamingOutput: direct construction with a sync or async chunk-producing iterator. That mirrors how the class is exercised in lib/crewai/tests/test_streaming.py and stays consistent with the existing CrewStreamingOutput example style. Happy to adjust further if you'd prefer a different framing.

[Vidit-Ostwal]

CrewStreamingOutput example looks good. The restored FlowStreamingOutput example still teaches the test-only constructor, not the public Flow streaming API.

[uoparaji]

@Vidit-Ostwal you're right - the test-only constructor was misleading in a public docstring. Pushed 454b9eb replacing that example with the actual public streaming path: Flow.stream = True → kickoff() / kickoff_async() → StreamSession / AsyncStreamSession. The block is explicitly labeled that Flow.kickoff() does not return a FlowStreamingOutput, and it points readers at docs/edge/en/learn/streaming-flow-execution.mdx for the full guide. Let me know if you'd rather drop the example entirely and keep only the Note.

[Vidit-Ostwal]

Looks good. Crew examples now construct with stream=True, and the Flow example documents the public StreamSession path instead of the test-only constructor.