code: def test_TOPUP_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          config=dict(
              argstr="--config=%s",
              usedefault=True,
          ),
          encoding_direction=dict(
              argstr="--datain=%s",
              mandatory=True,
              requires=["readout_times"],
              xor=["encoding_file"],
          ),
          encoding_file=dict(
              argstr="--datain=%s",
              extensions=None,
              mandatory=True,
              xor=["encoding_direction"],
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          estmov=dict(
              argstr="--estmov=%d",
          ),
          fwhm=dict(
              argstr="--fwhm=%f",
          ),
          in_file=dict(
              argstr="--imain=%s",
              extensions=None,
              mandatory=True,
          ),
          interp=dict(
              argstr="--interp=%s",
          ),
          max_iter=dict(
              argstr="--miter=%d",
          ),
          minmet=dict(
              argstr="--minmet=%d",
          ),
          numprec=dict(
              argstr="--numprec=%s",
          ),
          out_base=dict(
              argstr="--out=%s",
              extensions=None,
              hash_files=False,
              name_source=["in_file"],
              name_template="%s_base",
          ),
          out_corrected=dict(
              argstr="--iout=%s",
              extensions=None,
              hash_files=False,
              name_source=["in_file"],
              name_template="%s_corrected",
          ),
          out_field=dict(
              argstr="--fout=%s",
              extensions=None,
              hash_files=False,
              name_source=["in_file"],
              name_template="%s_field",
          ),
          out_jac_prefix=dict(
              argstr="--jacout=%s",
              hash_files=False,
              usedefault=True,
          ),
          out_logfile=dict(
              argstr="--logout=%s",
              extensions=None,
              hash_files=False,
              keep_extension=True,
              name_source=["in_file"],
              name_template="%s_topup.log",
          ),
          out_mat_prefix=dict(
              argstr="--rbmout=%s",
              hash_files=False,
              usedefault=True,
          ),
          out_warp_prefix=dict(
              argstr="--dfout=%s",
              hash_files=False,
              usedefault=True,
          ),
          output_type=dict(),
          readout_times=dict(
              mandatory=True,
              requires=["encoding_direction"],
              xor=["encoding_file"],
          ),
          reg_lambda=dict(
              argstr="--lambda=%0.f",
          ),
          regmod=dict(
              argstr="--regmod=%s",
          ),
          regrid=dict(
              argstr="--regrid=%d",
          ),
          scale=dict(
              argstr="--scale=%d",
          ),
          splineorder=dict(
              argstr="--splineorder=%d",
          ),
          ssqlambda=dict(
              argstr="--ssqlambda=%d",
          ),
          subsamp=dict(
              argstr="--subsamp=%d",
          ),
          warp_res=dict(
              argstr="--warpres=%f",
          ),
      )
      inputs = TOPUP.input_spec()
  
      for key, metadata in list(input_map.items()):
          for metakey, value in list(metadata.items()):
              assert getattr(inputs.traits()[key], metakey) == value
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_TOPUP_inputs() without return types