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.

Merge Risk: ⚪ Minimal · up to d781e

The documentation now describes the required streaming configuration and supported flow API without changing application behavior. No current merge-readiness risk remains.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the documentation fix for streaming output examples.
Description check	✅ Passed	The description includes the linked issue, explains both API documentation corrections, records verification results, and provides relevant context. It appropriately identifies tests as not applicable…
Linked Issues check	✅ Passed	The changes satisfy issue #7285. The crew examples now enable streaming, the nonexistent flow methods were removed, and users are directed to the supported Flow.kickoff and StreamSession API without r…
Out of Scope Changes check	✅ Passed	The changes are limited to the documented streaming examples in the targeted file and align with the linked issue. No unrelated runtime or feature changes are present.
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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