class_docstr: Class for averaging tempo evaluation scores.
code: def __str__(self):
      return self.tostring()
  
imports: from __future__ import absolute_import, division, print_function
  import warnings
  import numpy
  from .None import EvaluationMixin, MeanEvaluation, evaluation_io
  from ..io import load_tempo
label_desc: Use image node_id 7 for calling the TempoMeanEvaluation obj's underlying member method code with example usage: obj.__str__() and returns: self