Swift Quick/Nimble SharedExample without creating a separate class

Swift_QuickNimble_SharedExample.swift

context("some context") {

     let someSharedExample = "someSharedExampleID"

     sharedExamples(someSharedExample) { (sharedExampleContext: @escaping SharedExampleContext) in

         it("checks something") {

            let message = sharedExampleContext()["message"] as! String

             sut.doSomething(for: someData)
             expect(sut.message) == message
         }
     }
}

//Test execution:
describe("Check something") {

itBehavesLike(someSharedExample) {
      ["message": "Message text"]
    }
}