riteshghorse commented on code in PR #24497:
URL: https://github.com/apache/beam/pull/24497#discussion_r1047301545
##########
sdks/go/pkg/beam/core/runtime/graphx/translate.go:
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@@ -687,6 +688,20 @@ func (m *marshaller) expandCrossLanguage(namedEdge
NamedEdge) (string, error) {
EnvironmentId: m.addDefaultEnv(),
}
+ // Add the coders for output in the marshaller even if expanded is nil
+ // for output coder field in expansion request.
+ // We need this specifically for Python External Transforms.
+ names := strings.Split(spec.Urn, ":")
+ if len(names) > 2 && names[2] == "python" {
Review Comment:
done.
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