Is it possible to declare an extension protocol in a declaration with another protocol to inherit its properties?

In Swift, protocols can inherit properties and methods from other protocols. However, extension protocols are not declared separately — extensions are applied to existing protocols.

If you want one protocol to inherit from another, you declare it explicitly:

protocol A {
    func methodA()
}

protocol B: A {
    func methodB()
}

Here, protocol B inherits from protocol A and requires the implementation of both methods.

Protocol extensions (extension) allow adding method implementations but do not declare a new protocol with inheritance. Thus, declaring an extension protocol with inheritance of properties from another protocol can only be done through regular protocol inheritance, not through extensions.