What you are searching can be found via googling, if you know, what to google for. I write a formal answer to this, because there is neither a link on the product page of the manufacturer, nor is it very easy to find for a beginner.
Have you seen this repository
emoro-2560-library on github? It seems to incorporate libraries for nearly ever function of the Emoro, including the bluetooth functionality of the GLAM board. You can find examples in the GLAM examples folder.
How did I found it? I googled for "emoro github". A better search phrase would be "emoro 2560 github" (Since Emoro 2560 is somewhat the extended name of the robot). I used the term "github", since most libraries for Arduinos and their derivates/variants are hosted on github. If you are search for a library, you can first search for them on github. Most times you will find something. Often these libraries also serve as a kind of documentation (as real and good documentation can be rare to find).
Now somewhat unneeded, but from the library code and the pictures on the product page of the GLAM module, I think, that a serial bluetooth module with AT firmware like HC-05 is used. If you ever want to look past the bluetooth library for the robot, you would need to go that way. (How a Hc-05 is controlled can also be googled)