ezmsg.baseproc.util.pipeline_settings.INIT_FINAL_COMPONENT_ADDRESS

INIT_FINAL_COMPONENT_ADDRESS: Final[str] = '__init_final__'

Sentinel component_address value attached to the final PipelineSettingsEvent of the startup snapshot. Producers emit one such event with event_type=INITIAL, structured_value=None and repr_value="" immediately after the last per-component INITIAL has been queued. Consumers that need to aggregate the per-component initial snapshot (e.g., a typed-column sink that wants one merged row instead of N rows + N-1 schema-driven rotations) detect this sentinel by address and flush their pending buffer at that point. Sinks that don’t need aggregation should treat the sentinel as a control message — by default, PipelineSettingsEvent.flatten_for_table() returns None for the sentinel so JSON-row sinks naturally skip it.