public List <GroupLesson> GetGroupLessons(string idsSheduleGroup, string dateFrom, string dateTo)
{
var parameters = new Dictionary <string, string>
{
{ "dateFrom", dateFrom },
{ "dateTo", dateTo }
};
string json = HttpRequstHelper.ExecutePost("GetGroupLessons", parameters, idsSheduleGroup);
return(JSONConvert.ConvertJSONToListDTO <GroupLesson>(json));
}