robertwb commented on code in PR #28289:
URL: https://github.com/apache/beam/pull/28289#discussion_r1329148697
##########
sdks/python/apache_beam/yaml/yaml_provider.py:
##########
@@ -138,8 +146,19 @@ def create_transform(self, type, args,
yaml_create_transform):
except Exception:
# It's possible this service doesn't vend schema transforms.
self._schema_transforms = {}
+ return self._schema_transforms
+
+ def requires_inputs(self, typ, args):
+ if self._urns[type] in self.schema_transforms():
+ return bool(self.schema_transforms()[self._urns[type]].inputs)
Review Comment:
Yeah, it'd be nice to be able to query about the requirements of a
configured transform before invoking it, but that's a larger change... Most
(though not all) transforms have fixed inputs at least, so this'll cover those.
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