public EmployeeModel Insert(EmployeeModel model)
 {
     EmployeeModels.Add(model); return(model);
 }
 public void Update(EmployeeModel model)
 {
     throw new NotImplementedException();
 }
 public EmployeeModel Add(EmployeeModel employee)
 {
     context.Employees.Add(employee);
     context.SaveChanges();
     return(employee);
 }