ZF\Console\Route::setDescription PHP Method

    public function setDescription($description)
    {
        $this->description = $description;
        return $this;
    }

 /**
  * @param string $route
  * @param array $constraints
  * @param array $defaults
  * @param array $aliases
  * @param null|array $filters
  * @param null|array $validators
  */
 public function addRouteSpec(array $spec)
 {
     if (!isset($spec['name'])) {
         throw new InvalidArgumentException('Route specification is missing a route name');
     }
     $name = $spec['name'];
     if (!isset($spec['route'])) {
         $spec['route'] = $spec['name'];
     }
     $routeString = $this->prependRouteWithCommand($name, $spec['route'], array_key_exists('prepend_command_to_route', $spec) ? $spec['prepend_command_to_route'] : true);
     $constraints = isset($spec['constraints']) && is_array($spec['constraints']) ? $spec['constraints'] : array();
     $defaults = isset($spec['defaults']) && is_array($spec['defaults']) ? $spec['defaults'] : array();
     $aliases = isset($spec['aliases']) && is_array($spec['aliases']) ? $spec['aliases'] : array();
     $filters = isset($spec['filters']) && is_array($spec['filters']) ? $spec['filters'] : null;
     $validators = isset($spec['validators']) && is_array($spec['validators']) ? $spec['validators'] : null;
     $description = isset($spec['description']) && is_string($spec['description']) ? $spec['description'] : '';
     $shortDescription = isset($spec['short_description']) && is_string($spec['short_description']) ? $spec['short_description'] : '';
     $optionsDescription = isset($spec['options_descriptions']) && is_array($spec['options_descriptions']) ? $spec['options_descriptions'] : array();
     $filters = $this->prepareFilters($filters);
     $validators = $this->prepareValidators($validators);
     $route = new Route($name, $routeString, $constraints, $defaults, $aliases, $filters, $validators);
     $route->setDescription($description);
     $route->setShortDescription($shortDescription);
     $route->setOptionsDescription($optionsDescription);
     $this->addRoute($route);
     return $this;
 }