class_docstr: Class for averaging key evaluations.
  
  Parameters
  ----------
  eval_objects : list
      Key evaluation objects.
  name : str, optional
      Name to be displayed.
code: def tostring(self, **kwargs):
      return (
          "{}\n  Weighted: {:.3f}  Correct: {:.3f}  Fifth: {:.3f}  "
          "Relative: {:.3f}  Parallel: {:.3f}  Other: {:.3f}".format(
              self.name,
              self.weighted,
              self.correct,
              self.fifth,
              self.relative,
              self.parallel,
              self.other,
          )
      )
  
file_path: madmom/madmom/evaluation/key.py
imports: from collections import Counter
  from .None import EvaluationMixin, evaluation_io
  from ..io import load_key
label_desc: Use image node_id 2 for calling the KeyMeanEvaluation obj's underlying member method code with example usage: obj.tostring() and returns: str