mple(init_x, logprob, *logprob_args, **slice_sample_args):      sigma         = slice_sample_args.get('sigma', 0.0)      step_out      = slice_sample_args.get('step_out', True)      max_steps_out = slice_sample_args.get('max_steps_out', 0000)      compwise      = slice_sample_args.get('compwise', True)      verbose       = slice_sample_args.get('verbose', False)        