code: public function setInteger(string $key, $value, int $ignoredDefaultValue = null)
      {
          $this->set($key, (int) $value, $ignoredDefaultValue);
          return $this;
      }
docs: Sets an integer value to the builder.
  @param string $key
  @param mixed $value
  @param int|null $ignoredDefaultValue
  @return $this