public async Task CreateEmployeeAsync(EmployeeBiodata employee)
        {
            if (employee is null)
            {
                throw new ArgumentNullException(nameof(employee));
            }

            await context.EmployeeBiodatas.AddAsync(employee);
        }
        public async Task DeleteEmployeeAsync(EmployeeBiodata employee)
        {
            var employeeToDelete = await context.EmployeeBiodatas.FindAsync(employee.EmployeeId);

            if (employeeToDelete is null)
            {
                throw new ArgumentNullException(nameof(employee));
            }

            context.EmployeeBiodatas.Remove(employee);
        }