local_relay: false, time_offset: 0, connections: 0, connections_in: None, connections_out: None, network_active: true, networks: Vec::new(), relay_fee: Amount::from_sat(0), incremental_fee: Amount::from_sat(0), local_addresses: Vec::new(), warnings: String::new(), }) } fn get_block_hash(&self, height: usize) -> Result<BlockHash, jsonrpc_core::Error> { match self.state().hashes.get(height) { Some(block_hash) => Ok(*block_hash), None => Err(Self::not_found()), } } fn get_block_header( &self, block_hash: BlockHash, verbose: bool, ) -> Result<Value, jsonrpc_core::Error> { if verbose { let height = match self .state() .hashes .iter() .position(|hash| *hash == block_hash) { Some(height) => height, None => return Err(Self::not_found()), }; Ok( serde_json::to_value(GetBlockHeaderResult { bits: String::new(), chainwork: Vec::new(),