class_docstr: The fitness is a measure of quality of a solution. If *values* are
  provided as a tuple, the fitness is initialized using those values,
  otherwise it is empty (or invalid).
  
  :param values: The initial values of the fitness as a tuple, optional.
  
  Fitnesses may be compared using the ``>``, ``<``, ``>=``, ``<=``, ``==``,
  ``!=``. The comparison of those operators is made lexicographically.
  Maximization and minimization are taken care off by a multiplication
  between the :attr:`weights` and the fitness :attr:`values`. The comparison
  can be made between fitnesses of different size, if the fitnesses are
  equal until the extra elements, the longer fitness will be superior to the
  shorter.
  
  Different types of fitnesses are created in the :ref:`creating-types`
  tutorial.
  
  .. note::
     When comparing fitness values that are **minimized**, ``a > b`` will
     return :data:`True` if *a* is **smaller** than *b*.
docstr: Return the Python code to build a copy of the object.
docstr_tok: ["Return","the","Python","code","to","build","a","copy","of","the","object","."]
code: def __repr__(self):
      """Return the Python code to build a copy of the object."""
      return "%s.%s(%r)" % (
          self.__module__,
          self.__class__.__name__,
          self.values if self.valid else tuple(),
      )
  
imports: import sys
  from copy import deepcopy
  from functools import partial
  from operator import mul, truediv
label_desc: Use image node_id 16 for calling the Fitness obj's underlying member method code with example usage: obj.__repr__() and returns: unknown