code: public function toArray()
      {
          return [
              'file' => $this->getMutationFileRelativePath(),
              'mutator' => $this->mutation->getMutator(),
              'class' => $this->mutation->getClass(),
              'method' => $this->mutation->getMethod(),
              'line' => $this->mutation->getLine(),
              'diff' => $this->getDiff(),
              'tests' => $this->testMethods
          ];
      }
docs: For debug and logging purposes
  @return array