class_docstr: Merge multiple Nifti files into one. Merges together meta data
  extensions as well.
class_docstr_tok: ["Merge","multiple","Nifti","files","into","one",".","Merges","together","meta","data","extensions","as","well","."]
code: def _list_outputs(self):
      outputs = self._outputs().get()
      outputs["out_file"] = self.out_path
      return outputs
  
imports: import os
  from os import path
  import string
  import errno
  from glob import glob
  import nibabel
  import imghdr
  from .base import TraitedSpec, DynamicTraitedSpec, InputMultiPath, File, Directory, traits, BaseInterface, isdefined, Undefined
label_desc: Use image node_id 2 for calling the MergeNifti obj's underlying member method code with example usage: obj._list_outputs() and returns: outputs