class_docstr: Translate python list from and to numpy.ndarray
docstr: Placeholder docstring
docstr_tok: ["Placeholder","docstring"]
code: def serialize(self, data, content_type: str = "application/list"):
      """Placeholder docstring"""
      try:
          return np.array(data)
      except Exception as e:
          logger.error(e)
          raise ValueError(
              "Unable to convert data %s to np.ndarray" % type(data)
          ) from e
  
imports: from __future__ import absolute_import
  import logging
  import numpy
label_desc: Use image node_id 2 for calling the ListTranslator obj's underlying member method code with example usage: obj.serialize(data, content_type) and returns: np