code: def _info(self):
      return datasets.MetricInfo(
          description=_DESCRIPTION,
          citation=_CITATION,
          inputs_description=_KWARGS_DESCRIPTION,
          features=datasets.Features(
              {
                  "X": datasets.Sequence(
                      datasets.Value("float", id="sequence"), id="X"
                  ),
              }
          ),
      )
  
imports: import numpy
  import datasets
label_desc: Use image node_id 1 for calling the Mahalanobis obj's underlying member method code with example usage: obj._info() and returns: datasets