text: const stateShowSignInPage = (sender, message) => {
      // DESC: ...
      debug(`stateShowSignInPage()`)
      const currentState = "ShowSignInPage"
  
      // ACL: Insert HERE all allowed senders.
      const AccessControlList = [
          "ShowNavbarPage",
          "InsertOneUser"
      ]
  
      const errorMessage = `CELLULAR_JS - ACL Error: ${sender} cannot send message to ${currentState}. Try insert "${sender}" into ${currentState} AccessControlList at "${currentState.toLowerCase()}/state.js"`
      const isAllowedSender = (sender) => (AccessControlList.indexOf(sender) === -1) ? false : true
      if (isAllowedSender(sender)) {
          stateShowSignInPagePresenter(message)
      } else {
          debug(errorMessage, 'ERROR')
      }
  }
  
  