Get Walkers information if they are in Sensor view

Hi

I want to extract some kind of data from the scene like the coordinates of the walker if they are in front of the player. Is there a way to just get the list of the actors in the camera/sensor line of sight ? I would then just extract the global coordinates of walker as a first step.

Edit: I found that unreal engine has the function was WasRecentlyRendered. This would be helpful for finding if an walker actor was recently rendered and then get its coordinates. But I dont think this function is exposed to the PythonAPI. Please correct me if I am wrong