public static String getFileName(String className) {
        return "com.linecorp.armeria.docstrings.annotated." + className + ".properties";
    }
Creates the file name used in the rest api documentation properties files.
@param className The class name used for generating the file name.
@return The used file name.
core/src/main/java/com/linecorp/armeria/internal/server/annotation/ProcessedDocumentationHelper.java