Get range of historical blocks to download.
Declared in <validation.h>
[[requires_capability(0x7f9513c484a8), requires_capability(0x7f9502de9c48), requires_capability(0x7f950b21c418), requires_capability(0x7f9514bf6408)]]
std::optional<std::pair<CBlockIndex const*, CBlockIndex const*>>
GetHistoricalBlockRange() const;The [first, last]range of historical blocks to download, or std::nullopt if none.