class_docstr: Extra outputs for Adaptive HMC `TransitionOperator`.
code: def is_accepted(self) -> fun_mc.BooleanArray:
      return self.hmc_extra.is_accepted
  
imports: import functools
  import typing
  from typing import Any, Callable, Iterable, NamedTuple, Optional
  import numpy
  from fun_mc import backend
  from fun_mc import fun_mc_lib
  from fun_mc import malt
  from fun_mc import sga_hmc
  from fun_mc.malt import *
  from fun_mc.sga_hmc import *
label_desc: Use image node_id 2 for calling the AdaptiveHamiltonianMonteCarloExtra obj's underlying member method code with example usage: obj.is_accepted() and returns: self