For a follow-up, we must look into this signature.
#44964 (comment)

When working on the CLI I was wondering why pkg/archive was imported in some location where I wouldn't expect it, and I stumbled upon this code; https://github.com/docker/cli/blob/14482589df194a86b2ee07df643ba3277b40df7d/cli/command/container/formatter_diff.go#L56-L67

func (d *diffContext) Type() string {
	var kind string
	switch d.c.Kind {
	case archive.ChangeModify:
		kind = "C"
	case archive.ChangeAdd:
		kind = "A"
	case archive.ChangeDelete:
		kind = "D"
	}
	return kind
}

It turns out that the Client returns its own type for this, but that type does not have the enum values;

We should consider to either

• add the enums to the API types
• have the backend return the correct type
• have a utility to convert the type
• (possibly alias one for the other if needed)

Originally posted by @thaJeztah in #44964 (comment)