code: def _atleast_nd_helper(n, arys):
      """Helper function for atleast_nd functions."""
  
      res = []
      for a in arys:
          a = cupy.asarray(a)
          if a.ndim < n:
              new_shape = _atleast_nd_shape_map[(n, a.ndim)](a.shape)
              a = a.reshape(*new_shape)
          res.append(a)
  
      if len(res) == 1:
          (res,) = res
      return res
  
file_path: cupy/cupy/_manipulation/dims.py
imports: import cupy
  from cupy import _core
  import cupy._core._routines_manipulation
label_desc: Use image node_id 1 for calling a global function with example usage: _atleast_nd_helper(n, arys) and returns: res