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