I have this simple DTO class:

public class ActionDTO
{
    public int Id { get; set; }
    public required string Name { get; set; }
    
}

And I have this mapping profile:

public class MappingProfiles : Profile
{
    public MappingProfiles() {
        CreateMap<ActionDTO, Models.Admin.Action>();
        CreateMap<Models.Admin.Action, ActionDTO>();
    }
}

The controller looks like this:

[HttpGet]
public async Task<ActionResult<IEnumerable<ActionDTO>>> GetActions()
{
    if (planProDbContext.Actions == null)
    {
        return NotFound();
    }
    IEnumerable<Models.Admin.Action> actions = await planProDbContext.Actions.ToListAsync();
    // List<ActionDTO> actionDTOs = mapper.Map<List<ActionDTO>>(actions);
    return Ok(actions);
}

As you see, I return actions, and not a list of dto’s. But the signature of the method is Task<ActionResult<IEnumerable<ActionDTO>>>. Why does this work?