How can I provide my own implementation of IStepArgumentTypeConverter implementation for my tests?

[rgavrilov]

I would like to provide a more dynamic argument transformation, specifically, I would like to automatically convert data table instances into ICollection. But for some of the transformations I need access to scenario context.

My understanding is that it is possible OOB but

1. requires explicit definitions of custom step argument transformation methods;
2. scenario context is not available for IValueRetriever retrievers.

The end goal is an ability to expand defined shorthands, e.g.:

Given "..." means "Foo Bar"
And data input:
  | Column 1 | Column 2 |
  | ...Zap   | 5        |
  | ...Dope  | 11       |

Side question:
I use TypeDescriptor.AddProvider to define custom mapping between DataTable and a particular IEnumerable<T>, so that I can accept IEnumerable<T> in my steps instead of accepting DataTable.
Is there a better known way to do this?

[rgavrilov]

I can see that I can use IRuntimePlugin/CustomizeGlobalDependencies - it seems I can override IBindingRegistry but can't replace IStepArgumentTypeConverter, which is what I need in this case.