code: def test_RegF3D_inputs():
      input_map = dict(
          aff_file=dict(
              argstr="-aff %s",
              extensions=None,
          ),
          amc_flag=dict(
              argstr="-amc",
          ),
          args=dict(
              argstr="%s",
          ),
          be_val=dict(
              argstr="-be %f",
          ),
          cpp_file=dict(
              argstr="-cpp %s",
              extensions=None,
              name_source=["flo_file"],
              name_template="%s_cpp.nii.gz",
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          fbn2_val=dict(
              argstr="-fbn %d %d",
          ),
          fbn_val=dict(
              argstr="--fbn %d",
          ),
          flo_file=dict(
              argstr="-flo %s",
              extensions=None,
              mandatory=True,
          ),
          flo_smooth_val=dict(
              argstr="-smooF %f",
          ),
          flwth2_thr_val=dict(
              argstr="-fLwTh %d %f",
          ),
          flwth_thr_val=dict(
              argstr="--fLwTh %f",
          ),
          fmask_file=dict(
              argstr="-fmask %s",
              extensions=None,
          ),
          fupth2_thr_val=dict(
              argstr="-fUpTh %d %f",
          ),
          fupth_thr_val=dict(
              argstr="--fUpTh %f",
          ),
          incpp_file=dict(
              argstr="-incpp %s",
              extensions=None,
          ),
          jl_val=dict(
              argstr="-jl %f",
          ),
          kld2_flag=dict(
              argstr="-kld %d",
          ),
          kld_flag=dict(
              argstr="--kld",
          ),
          le_val=dict(
              argstr="-le %f",
          ),
          ln_val=dict(
              argstr="-ln %d",
          ),
          lncc2_val=dict(
              argstr="-lncc %d %f",
          ),
          lncc_val=dict(
              argstr="--lncc %f",
          ),
          lp_val=dict(
              argstr="-lp %d",
          ),
          maxit_val=dict(
              argstr="-maxit %d",
          ),
          nmi_flag=dict(
              argstr="--nmi",
          ),
          no_app_jl_flag=dict(
              argstr="-noAppJL",
          ),
          noconj_flag=dict(
              argstr="-noConj",
          ),
          nopy_flag=dict(
              argstr="-nopy",
          ),
          nox_flag=dict(
              argstr="-nox",
          ),
          noy_flag=dict(
              argstr="-noy",
          ),
          noz_flag=dict(
              argstr="-noz",
          ),
          omp_core_val=dict(
              argstr="-omp %i",
              usedefault=True,
          ),
          pad_val=dict(
              argstr="-pad %f",
          ),
          pert_val=dict(
              argstr="-pert %d",
          ),
          rbn2_val=dict(
              argstr="-rbn %d %d",
          ),
          rbn_val=dict(
              argstr="--rbn %d",
          ),
          ref_file=dict(
              argstr="-ref %s",
              extensions=None,
              mandatory=True,
          ),
          ref_smooth_val=dict(
              argstr="-smooR %f",
          ),
          res_file=dict(
              argstr="-res %s",
              extensions=None,
              name_source=["flo_file"],
              name_template="%s_res.nii.gz",
          ),
          rlwth2_thr_val=dict(
              argstr="-rLwTh %d %f",
          ),
          rlwth_thr_val=dict(
              argstr="--rLwTh %f",
          ),
          rmask_file=dict(
              argstr="-rmask %s",
              extensions=None,
          ),
          rupth2_thr_val=dict(
              argstr="-rUpTh %d %f",
          ),
          rupth_thr_val=dict(
              argstr="--rUpTh %f",
          ),
          smooth_grad_val=dict(
              argstr="-smoothGrad %f",
          ),
          ssd2_flag=dict(
              argstr="-ssd %d",
          ),
          ssd_flag=dict(
              argstr="--ssd",
          ),
          sx_val=dict(
              argstr="-sx %f",
          ),
          sy_val=dict(
              argstr="-sy %f",
          ),
          sz_val=dict(
              argstr="-sz %f",
          ),
          vel_flag=dict(
              argstr="-vel",
          ),
          verbosity_off_flag=dict(
              argstr="-voff",
          ),
      )
      inputs = RegF3D.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_RegF3D_inputs() without return types