customUpdate static method
      
Future<int> 
customUpdate(
    
    
- String table,
- CacheDBBaseModel model, {
- String? columnName,
- String? columnValue,
Implementation
static Future<int> customUpdate(String table, CacheDBBaseModel model,
        {String? columnName, String? columnValue}) async =>
    await _db!.update(
      table,
      model.toMap(),
      where: '$columnName = ?',
      whereArgs: [columnValue],
    );