Importing only specific extensions from a module

Question

Say I have some extension in module A:

public extension String {
    func foo() { ... }
}

In module B, I would like to sometimes import individual extensions (or files), just like I can import struct, import enum, ...

Neither of

import struct A.String
import func A.String.foo

works, and there does not seem to be a keyword geared towards extensions.

Is this possible? How?

Answer 1

First of all read this: apple doc modules but its not possible, you can only use the Access Levels