youngoli commented on a change in pull request #10991: [BEAM-3301] Refactor
DoFn validation & allow specifying main inputs.
URL: https://github.com/apache/beam/pull/10991#discussion_r388608923
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File path: sdks/go/pkg/beam/core/graph/fn.go
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@@ -209,21 +209,74 @@ func (f *DoFn) RestrictionT() *reflect.Type {
// a KV or not based on the other signatures (unless we're more loose about
which
// sideinputs are present). Bind should respect that.
+// The following constants prefixed with "Main" represent possible numbers of
Review comment:
I definitely like those options better. Went with the unexported constant
type, since it makes the code more self-documenting as opposed to raw numbers.
Also removed the validation check on that parameter, like you suggested.
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