public async Task <EnglishTaskFullFilterModel> GetFullFilter()
        {
            var cachedFilter = _cacheRepository.GetObjectValue <EnglishTaskFullFilterModel>(FullFilterCacheKey);

            if (cachedFilter != null)
            {
                return(cachedFilter);
            }

            var fromDbFilter = await GetFromDbFullFilter();

            _cacheRepository.SetObjectValue(FullFilterCacheKey, fromDbFilter);

            return(fromDbFilter);
        }