code: def voxcoord_to_mm(cm, i, j, k):
      '''
      Parameters
      ----------
      cm: nipy.core.reference.coordinate_map.CoordinateMap
  
      i, j, k: floats
          Voxel coordinates
  
      Returns
      -------
      Triplet with real 3D world coordinates
  
      '''
      try:
          mm = cm([i, j, k])
      except Exception as exc:
          raise Exception('Error on converting coordinates.') from exc
      else:
          return mf voxcoord_to_mm(cm, i, j, k):
      '''
      Parameters
      ----------
      cm: nipy.core.reference.coordinate_map.CoordinateMap
  
      i, j, k: floats
          Voxel coordinates
  
      Returns
      -------
      Triplet with real 3D world coordinates
  
      '''
      try:
          mm = cm([i, j, k])
      except Exception as exc:
          raise Exception('Error on converting coordinates.') from exc
      else:
          return mm
docs: Parameters
      ----------
      cm: nipy.core.reference.coordinate_map.CoordinateMap
  
      i, j, k: floats
          Voxel coordinates
  
      Returns
      -------
      Triplet with real 3D world coordinates