public async ValueTask SaveAsync(IList <PullRequest> prDetails, string repoOwner, string repoName)
{
var parentDirectory = GetPathToRepoDataFiles(repoOwner, repoName);
var path = Path.Combine(parentDirectory, _pullRequestDetails);
var json = JsonConvert.SerializeObject(prDetails, _jsonSerializerSettings);
_fs.DirectoryCreateDirectory(parentDirectory);
await _fs.FileWriteAllTextAsync(path, json);
}