pub fn reconcile_blockstore_roots_with_external_source(
external_source: ExternalRootSource,
blockstore: &Blockstore,
last_blockstore_root: &mut Slot
) -> Result<()>
pub fn reconcile_blockstore_roots_with_external_source(
external_source: ExternalRootSource,
blockstore: &Blockstore,
last_blockstore_root: &mut Slot
) -> Result<()>