var google.golang.org/protobuf/internal/impl.uint32Zero

2 uses

	google.golang.org/protobuf/internal/impl (current package)
		convert.go#L82: 	uint32Zero  = pref.ValueOfUint32(0)
		convert.go#L113: 			return &uint32Converter{t, defVal(fd, uint32Zero)}

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