Add experimental Event Groups support - #1784
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Overall makes sense to me. Will let Tim approve, his comment about the exports seems important.
Boy oh boy is adding these parameters to 8 billion function overrides annoying. Thank god the LLMs can do it now.
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Summary
Add experimental support for Event Groups.
Event Groups is a new form of Workflow-level metadata that allows for improved visibility into a Workflow execution's history by grouping logically related Events together based on user-defined or system-inferred criteria.
create_event_group(id, label="...")takes the Event Group's ID as its first and only required argument. The user-provided ID is used verbatim as the grouping key and should not contain sensitive information. The label is optional and, if provided, is a codec-encoded Payload. Attach a group per call (event_groups=[...]) or ambiently withwith group.scope():(propagated through coroutines viacontextvars). Nested scopes compose; markers dedupe by id.event_group_markers. The user-facing type isEventGroup; the protocol type remainsEventGroupMarker.Testing
Event Groups support requires an Event-Groups-capable server. Local tests pin Temporal CLI:
Time-skipping and Cloud environments skip history-transcription cases.