code: def test_type_jvm_roundtrip(self):
      ts = self.types_to_test()
      for t in ts:
          rev_str = t._parsable_string()
          jtyp = Env.hail().expr.ir.IRParser.parseType(rev_str)
          self.assertEqual(t, dtype(jtyp.toString()))
  
imports: from typing import Optional
  import unittest
  from hail.expr import coercer_from_dtype
  from hail.expr.types import *
  from hail.genetics import reference_genome
  from ..helpers import *
  from hail.utils.java import Env
label_desc: Use image node_id 5 for calling the Tests obj's underlying member method code with example usage: obj.test_type_jvm_roundtrip() without return types