public async Task StoreAsync(PersistedGrant grant)
{
Guard.ArgumentNotNull(nameof(grant), grant);
var document = grant.ToPersistedGrantCosmosDocument();
var response = await _simpleItemDbContext.UpsertItemAsync(document);
if (!response.StatusCode.IsSuccess())
{
_logger.LogError($"StatusCode={response.StatusCode}");
}
}