Function: Return Data from Instance.
Function: Check if user has completed/passed a specific Quiz.
Method: Public constructor for class.
Method: Initialize the User class vars.
Method: Hook into the user meta update logic from WordPress so we know if external processes are updating the user meta value. If so we set the dirty flag to force a reload of the meta and rebuild the data structure.
Method: Load Legacy User Progress from User Meta.
Method: No description found
Method: Build User Quiz Progress nodes.
Method: Sets the Progress loaded flag to false and clears all data structures. Thisand will force the progress to be reloaded from meta.
Method: Get User Quiz Progress by progress type.
Method: Set Progress steps.
Method: Check if user has completed/passed a specific Quiz.