code: def test_TrackPICo_inputs():
      input_map = dict(
          anisfile=dict(
              argstr="-anisfile %s",
              extensions=None,
          ),
          anisthresh=dict(
              argstr="-anisthresh %f",
          ),
          args=dict(
              argstr="%s",
          ),
          curveinterval=dict(
              argstr="-curveinterval %f",
              requires=["curvethresh"],
          ),
          curvethresh=dict(
              argstr="-curvethresh %f",
          ),
          data_dims=dict(
              argstr="-datadims %s",
              units="voxels",
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          gzip=dict(
              argstr="-gzip",
          ),
          in_file=dict(
              argstr="-inputfile %s",
              extensions=None,
              position=1,
          ),
          inputdatatype=dict(
              argstr="-inputdatatype %s",
          ),
          inputmodel=dict(
              argstr="-inputmodel %s",
              usedefault=True,
          ),
          interpolator=dict(
              argstr="-interpolator %s",
          ),
          ipthresh=dict(
              argstr="-ipthresh %f",
          ),
          iterations=dict(
              argstr="-iterations %d",
              units="NA",
          ),
          maxcomponents=dict(
              argstr="-maxcomponents %d",
              units="NA",
          ),
          numpds=dict(
              argstr="-numpds %d",
              units="NA",
          ),
          out_file=dict(
              argstr="-outputfile %s",
              extensions=None,
              genfile=True,
              position=-1,
          ),
          output_root=dict(
              argstr="-outputroot %s",
              extensions=None,
              position=-1,
          ),
          outputtracts=dict(
              argstr="-outputtracts %s",
          ),
          pdf=dict(
              argstr="-pdf %s",
          ),
          seed_file=dict(
              argstr="-seedfile %s",
              extensions=None,
              position=2,
          ),
          stepsize=dict(
              argstr="-stepsize %f",
              requires=["tracker"],
          ),
          tracker=dict(
              argstr="-tracker %s",
              usedefault=True,
          ),
          voxel_dims=dict(
              argstr="-voxeldims %s",
              units="mm",
          ),
      )
      inputs = TrackPICo.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_TrackPICo_inputs() without return types