damccorm commented on code in PR #32116:
URL: https://github.com/apache/beam/pull/32116#discussion_r1710955748
##########
sdks/python/apache_beam/metrics/metric.py:
##########
@@ -305,3 +307,80 @@ def with_steps(self, steps: Iterable[str]) ->
'MetricsFilter':
self._steps.update(steps)
return self
+
+
+class Lineage:
+ """Standard collection of metrics used to record source and sinks information
+ for lineage tracking."""
+
+ LINEAGE_NAMESPACE = "lineage"
+ SOURCE = "sources"
+ SINK = "sinks"
+
+ _METRICS = {
+ SOURCE: Metrics.string_set(LINEAGE_NAMESPACE, SOURCE),
+ SINK: Metrics.string_set(LINEAGE_NAMESPACE, SINK)
+ }
+
+ def __init__(self, label: str) -> None:
+ """Create a Lineage with valid babel (:data:`~Lineage.SOURCE` or
Review Comment:
```suggestion
"""Create a Lineage with valid label (:data:`~Lineage.SOURCE` or
```
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