public void ChangeValue(string input, string output, string root)
{
var resolver = new DependencyResolver <string, string>();
var splitInput = input.Split("|");
foreach (var value in splitInput)
{
var kv = value.Split(":");
var dependencies = kv.Length == 1 ? ImmutableArray <string> .Empty : ImmutableArray <string> .Create(kv[1].Select(c => c.ToString()).ToList());
resolver.ChangeValue(kv[0], value, kv[0] == root, dependencies);
}
var walker = resolver.CreateWalker();
var result = new StringBuilder();
var tasks = new List <Task <IDependencyChainNode <string> > >();
while (walker.Remaining > 0)
{
var nodeTask = walker.GetNextAsync(default);
