DFRobot Solar Power Manager 5V Help

Hi everyone, 

I'm working on a device to monitor the health of a tree and I am using a solar cell along with the DFRobot Solar Power Manager 5V (product page: https://www.dfrobot.com/product-1712.html, wiki page: https://wiki.dfrobot.com/Solar_Power_Manager_5V_SKU__DFR0559) to charge my Lipo battery when it is not at full capacity and when it is at capacity or there's no sun light present, to draw power from the 2Ah 3.7V LiPo battery. 

As I understand the power manager doesn't speak to anything so is there any way to code up the solar power manager from my Arduino? I generated some code for the power manager to do this however it says I need to download the library <DFRobot_Solar_Power_Manager.h> to Arduino IDE but I can't seem to find this library anywhere? Does such library exist and how can I control the battery using the manager? I am not sure if the code generated just made up this library on the assumption there would be one. 

Thank you in advance! : )