code: function importGroovy(javaClassOrPkg) {
          var engine = getGroovyEngine();
          var HashSet = Tinkerpop.autoImport('HashSet');
          var imports = new HashSet();
          imports.add('import ' + javaClassOrPkg);
          engine.addImports(imports);
      }
docs: ### `importGroovy(pkgOrClass: string)` Imports a Java package or class, based on fully-qualified wildcard or class name.  This affects the operation of `newGroovyClosure` but does NOT affect `newGroovyLambda`.