docstr: Return the values of the Fitness object.
docstr_tok: ["Return","the","values","of","the","Fitness","object","."]
code: def __str__(self):
      """Return the values of the Fitness object."""
      return str(
          (
              self.values if self.valid else tuple(),
              self.constraint_violation,
          )
      )
  
imports: import sys
  from copy import deepcopy
  from functools import partial
  from operator import mul, truediv
label_desc: Use image node_id 10 for calling the ConstrainedFitness obj's underlying member method code with example usage: obj.__str__() and returns: str