code: public function setCatValue($assessmentSectionId, $key, $value)
      {
          $this->state[self::VAR_CAT][$assessmentSectionId][$key] = $value;
          return $this;
      }
docs: Sets a CAT value in the Extended State.
  @param string $assessmentSectionId
  @param string $key
  @param string $value
  @return ExtendedState