Property 'isAssignableFrom' does not exist

[maheshkurmi]

Class method 'isAssignableFrom' is not recognised by transpiler. It seems the issue may be resolved in 3.1.0 (as in issue #650) but I can't get it working.

Even I can't find mentioned fix in latest release 3.1.0 Java2TypeScriptAdapter.java

Is the fix yet to be pushed? Or am I missing something?

I am using jsweet 6.3.0, jsweet-transpiler 3.1.0, jts 2.0.0