I'm using AutoFixture to generate data for a structure involving a parent object and complex child objects, like this:

public class Parent
{
    public int Id { get; set; }
    public string Name { get; set; }
    public Child[] Children { get; set; }
}

public class Child
{
    public string Name { get; set; }
    public int ParentId { get; set; }
}

Is there a way to automatically set the property ParentId of the generated Child object to the id assigned to the parent? Right now my solution looks like this, which isn't very pretty:

var parent = fixture.Build<Parent>().Without(p => p.Children).CreateAnonymous();
parent.Children = fixture.CreateMany<Child>(10).ToArray();

foreach (var i in parent.Children)
{
    i.ParentId = parent.Id;
}

It feels like there's a better way to do this that I am missing? I looked into creating a custom ISpecimenBuilder but didn't manage to solve it that way either.

c# autofixture
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