public async Task <List <TokenDto> > GetCollocations_Async(Guid corpusId, string word, int direction)
{
var collocations = _cacheRepository.GetCollocations(corpusId, word, direction);
if (collocations != null)
{
return(await collocations);
}
var xd = await _searchCorpusService.GetAllCollocationsAsync(corpusId, word, direction);
_cacheRepository.InsertIntoCache <CollocationsInfo>(corpusId, word, xd);
return(await Task.FromResult(xd != null?xd.Collocations : null));
}