public async Task<LeaveAllowed> AllowedLeave(string userId, string accessToken)
        {
            LeaveAllowed allowedLeave = new LeaveAllowed();
            var requestUrl = string.Format(_stringConstant.FirstAndSecondIndexStringFormat, _stringConstant.CasualLeaveUrl, userId);
            var response = await _httpClientService.GetAsync(_stringConstant.ProjectUserUrl, requestUrl, accessToken, _stringConstant.Bearer);