/// This also means those counting confirmations using block_connected callbacks should watch
/// for duplicate headers and not count them towards confirmations!
fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], indexes_of_txn_matched: &[u32]);
/// This also means those counting confirmations using block_connected callbacks should watch
/// for duplicate headers and not count them towards confirmations!
fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], indexes_of_txn_matched: &[u32]);