Combining 2 rulesets as GRB and executing once

[akshayaTaza]

Exisiting
For my usecase, I am exploring the following:

• I have 2 rulesets which are compiled and stored in GRB format in a DB.
• I am using knowledgeLibrary.LoadKnowledgeBaseFromReader(<reader>, true) to load a single GRB rule and executing it.

Question
Is there any way possible to read 2 rulesets in GRB format and load using knowledgeLibrary.LoadKnowledgeBaseFromReader and then run engine.Execute() on the combined ruleSet once?