using System;

using System.Collections.Generic;

using AutoBogus;

public class Program

{

    public static void Main()

    {

        var shifts = new AutoFaker<Plan>()

            .RuleFor(x => x.Date, new DateOnly(2025, 03, 1))

            .RuleFor(x => x.StartTime, TimeOnly.FromDateTime(DateTime.Now))

            .RuleFor(x => x.EndTime, TimeOnly.FromDateTime(DateTime.Now))

            .Generate(1);

        var worker = new AutoFaker<Employee>()

            .RuleFor(a => a.Plans, shifts)

            .Generate();

        worker.Dump();

    }

}

​

public class Plan

{

    public DateOnly Date { get; set; }

    public TimeOnly StartTime { get; set; }

    public TimeOnly EndTime { get; set; }

    public Guid EmployeeId { get; set; }

}

​

public class Employee 

{  

   public ICollection<Plan>? Plans { get; set; }

}