EDD_API::api_key_backwards_copmat() – A Backwards Compatibility call for the change of meta_key/value for users API Keys
EDD_API::invalid_key() – Displays an invalid API key error if the API key provided couldn’t be validated
EDD_License::fix_stripe_key() – If the original Stripe gateway key is set and the new one is not, update the license key to fix automatic updates.
edd_upgrade_user_api_keys() – Upgrade the User meta API Key storage to swap keys/values for performance
ExtensionPage::show_missing_key_question() – If a pass hasn’t been saved, show the text offering to add it.
Payment::get_meta_key_whitelist() – Retrieves a list of whitelisted meta keys that we want to catch in get/update post meta calls.
TestsTokenizer::test_regenerating_key_invalidates_token() – If the signing key is regenerated, previously generated tokens should be invalidated.
