Membership 2 Pro PHP Functions

Is there a documentation page anywhere to provide PHP functions that're available with this plugin (if any)?

I'm using a while loop to pull through rows from a repeater field using 'Advanced Custom Fields Pro', and I was wondering if there is anything I could do to filter the shown rows depending on the users member group.

I uploaded a file, and secured it to a group and then made a var_dump of the object, but there didn't seem to be anything relating to membership.