code: def eigvals(
      x: Union[(None, mx.ndarray.NDArray)], /
  ) -> Union[(None, mx.ndarray.NDArray)]:
      raise IvyNotImplementedException()
  
file_path: ivy/ivy/functional/backends/mxnet/experimental/linear_algebra.py
imports: from typing import Union, Optional, Tuple, List, Sequence
  import mxnet
  from ivy.utils.exceptions import IvyNotImplementedException
label_desc: Use image node_id 6 for calling a global function with example usage: eigvals() without return types