As per documentation:

When you have nested keys which contain ., you can pass the custom nested key delimiter as follows (#629):

func mapping(map: Map) { appName <- map["com.myapp.info->com.myapp.name", delimiter: "->"] }

Reference: Custom nested key delimiter in mapping

As per documentation:

When you have nested keys which contain ., you can pass the custom nested key delimiter as follows (#629):

func mapping(map: Map) {
    appName <- map["com.myapp.info->com.myapp.name", delimiter: "->"]
}

Reference: Custom nested key delimiter in mapping