Get range of historical blocks to download.
Declared in <validation.h>
[[requires_capability(0x7f2e1bc18148), requires_capability(0x7f2e146b6498), requires_capability(0x7f2e298fb868), requires_capability(0x7f2e360b8fc8)]]
std::optional<std::pair<CBlockIndex const*, CBlockIndex const*>>
GetHistoricalBlockRange() const;The [first, last]range of historical blocks to download, or std::nullopt if none.