public async Task <IEnumerable <Measuregrp> > GetMeasureGroups(DateTime sinceDateTime, string accessToken)
        {
            var measureGroups = await _withingsClient.GetMeasureGroups(accessToken, sinceDateTime);

            var dateFilteredMeasures = measureGroups.Where(x => x.date.ToDateFromUnixTime() >= sinceDateTime);

            return(dateFilteredMeasures);
        }