class_docstr: Test, multi-part bijector.
class_docstr_tok: ["Test",",","multi-part","bijector","."]
code: def forward_log_det_jacobian(self, x, event_ndims, **kwargs):
      return 0.0
  
imports: from absl.testing import parameterized
  from jax import config
  import numpy
  import tensorflow.compat.v2
  from fun_mc import backend
  from fun_mc import fun_mc_lib
  from fun_mc import test_util
  from fun_mc import util_tfp
label_desc: Use image node_id 6 for calling the DupBijector obj's underlying member method code with example usage: obj.forward_log_det_jacobian(x, event_ndims) and returns: int