I can get wordy, but if you like documentation I have some here: http://thingsthataresmart.wiki/index.php?title=Alexa_Helper
That will give you the location of the files:
Alexa Helper-Parent (Main):
Version: 4.4.5
https://github.com/MichaelStruck/SmartThingsPublic/blob/master/smartapps/michaelstruck/alexa-helper.src/alexa-helper.groovy
Alexa Helper-Child (Scenario):
Version: 2.8.7
https://github.com/MichaelStruck/SmartThingsPublic/blob/master/smartapps/michaelstruck/alexa-helper-scenario.src/alexa-helper-scenario.groovy
Alexa Switch:
Version: 2.0.5
https://github.com/MichaelStruck/SmartThingsPublic/blob/master/devicetypes/michaelstruck/alexa-switch.src/alexa-switch.groovy
Don’t hesitate to reach out to me via PM if you need some specific guidance.