Imported packaging to gremlin

I'm trying to import https://github.com/thinkaurelius/titan/blob/1.0.0/titan-core/src/main/java/com/thinkaurelius/titan/graphdb/tinkerpop/io/graphson/TitanGraphSONModule.java "into gremlin using the command

import https://github.com/thinkaurelius/titan/blob/1.0.0/titan-core/src/main/java/com/thinkaurelius/titan/graphdb/tinkerpop/io/graphson/TitanGraphSONModule.java;

      

        
        
        
      

    

But getting an error like this:

Invalid import definition: https://github.com/thinkaurelius/titan/blob/1.0.0/titan-core/src/main/java/com/thinkaurelius/titan/graphdb/tinkerpop/io/graphson/TitanGraphSONModule.java ;

How to import this class - TitanGraphSONModule.java

??