Unity/My project/Library/PackageCache/com.unity.visualscripting@1.7.8/Runtime/VisualScripting.Flow/Ports/IUnitPortCollection.cs

namespace Unity.VisualScripting
{
    public interface IUnitPortCollection<TPort> : IKeyedCollection<string, TPort> where TPort : IUnitPort
    {
        TPort Single();
    }
}