How to use the offlineimap.accounts.Account function in offlineimap

def callhook(self, cmd):
        if not cmd:
            return
        try:
            self.ui.callhook("Calling hook: " + cmd)
            p = Popen(cmd, shell=True,
                      stdin=PIPE, stdout=PIPE, stderr=PIPE,
                      close_fds=True)
            r = p.communicate()
            self.ui.callhook("Hook stdout: %s\nHook stderr:%s\n" % r)
            self.ui.callhook("Hook return code: %d" % p.returncode)
        except:
            self.ui.warn("Exception occured while calling hook")
    
class SyncableAccount(Account, AccountSynchronizationMixin):
    pass

def syncfolder(accountname, remoterepos, remotefolder, localrepos,
               statusrepos, quick):
    global mailboxes
    ui = UIBase.getglobalui()
    ui.registerthread(accountname)
    # Load local folder.
    localfolder = localrepos.\
                  getfolder(remotefolder.getvisiblename().\
                            replace(remoterepos.getsep(), localrepos.getsep()))
    # Write the mailboxes
    mbnames.add(accountname, localfolder.getvisiblename())

    # Load status folder.
    statusfolder = statusrepos.getfolder(remotefolder.getvisiblename().\

def __serverdiagnostics(self, options):
        self.ui.info("  imaplib2: %s (%s)"% (imaplib.__version__, imaplib.DESC))
        for accountname in self._get_activeaccounts(options):
            account = accounts.Account(self.config, accountname)
            account.serverdiagnostics()

def AccountListGenerator(customconfig):
    return [Account(customconfig, accountname)
            for accountname in getaccountlist(customconfig)]