/// <inheritdoc />
public async Task<IEnumerable<ApplicationDetails>> ListCompletedApplicationsAsync(DateTime submittedAfterInUtc, DateTime submittedBeforeInUtc)
{
long submittedTimeBegin = ConvertDateTimeToUnixEpoch(submittedAfterInUtc);
long submittedTimeEnd = ConvertDateTimeToUnixEpoch(submittedBeforeInUtc);
ApplicationListResult result = await this.readProxy.ListCompletedApplicationsAsync(submittedTimeBegin.ToString(), submittedTimeEnd.ToString());
ApplicationList applications = new ApplicationList(result);
return applications.Applications;
}