Sorry, I guess the Content Example map that uses that anim Blueprint must not be released yet. In that case, do you have the “Animation” content example map? If so, example 1.10 in that map is a playable 3rd person character pawn who can strafe, so that should be helpful for reference.
The relevant Animation Blueprint to search for in that case is called “Owen_ExampleBP”, and while it’s a little more complex because of the aim offset stuff in there, the part of the event graph labelled “Locomotion Direction” is the important bit. The movement direction and actor rotation are being used to calculate a direction variable that ranges from -180 to 180. That variable along with the speed variable is being fed into the 2D Blendspace (Owen_Locomotion_Blendspace), which blends between 4 different running animations for each direction.