Get full list of secret codes in android

I was able to run some of settings hidden apps via adb with adb shell am start -a android.intent.action.MAIN "com.android.settings" These hidden apps are actually some of the activities runnable via "secret codes". Since secret codes are various and some of them are also vendor/device defined, is there a way to retrieve list of every secret code available on a particular device? Maybe from a manifest, by identifying the receivers, via some adb commands etc. Thank you in advance!