Set explicit visibility metadata on class constants

src/MDConsole.php

@@ -11,8 +11,8 @@
  */
 final class MDConsole {
 
-    const CONSOLE_LOG_USED_RESOURCES_ENABLED = 1;
-    const CONSOLE_LOG_USED_RESOURCES_DISABLED = 0;
+    public const CONSOLE_LOG_USED_RESOURCES_ENABLED = 1;
+    public const CONSOLE_LOG_USED_RESOURCES_DISABLED = 0;
 
     /** @var boolean */
     public static $verbose = true;

src/MDOutputHandler.php

@@ -11,7 +11,7 @@
  */
 final class MDOutputHandler {
 
-    const FLUSH_TO_LOGFILE_AFTER = 100;
+    private const FLUSH_TO_LOGFILE_AFTER = 100;
 
     public static bool $disable_completely = false;