Function absl_nullable GetMediumReferenceCount

common/internal/byte_string.h:417–420

      const MediumByteStringRep& rep);

  const ReferenceCount* absl_nullable GetMediumReferenceCount() const {
    ABSL_DCHECK_EQ(GetKind(), ByteStringKind::kMedium);
    return GetMediumReferenceCount(rep_.medium);
  }

  static const ReferenceCount* absl_nullable GetMediumReferenceCount(
      const MediumByteStringRep& rep);