def send_getheaders(self):
    m = msg_getheaders()
    m.locator = self.block_store.get_locator(self.bestblockhash)
    self.conn.send_message(m)
def send_getheaders(self):
    m = msg_getheaders()
    m.locator = self.block_store.get_locator(self.bestblockhash)
    self.conn.send_message(m)