code: func DjangoSessionBySessionKey(db XODB, sessionKey string) (*DjangoSession, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT ` +
  		`session_key, session_data, expire_date ` +
  		`FROM django.django_session ` +
  		`WHERE session_key = ?`
  
  	// run query
  	XOLog(sqlstr, sessionKey)
  	ds := DjangoSession{
  		_exists: true,
  	}
  
  	err = db.QueryRow(sqlstr, sessionKey).Scan(&ds.SessionKey, &ds.SessionData, &ds.ExpireDate)
  	if err != nil {
  		return nil, err
  	}
  
  	return &ds, nil
  }
docs: // DjangoSessionBySessionKey retrieves a row from 'django.django_session' as a DjangoSession.
  //
  // Generated from index 'django_session_session_key_pkey'.