code: public function getSnippet(string $snptName = '')
      {
          if (empty($snptName)) {
              return $this->snippets;
          } else {
              return isset($this->snippets[$snptName]) ? $this->snippets[$snptName]
                      : null;
          }
      }
docs: It returns assigned snippet object by the name. If the name not presents,
  then it returns the map with all View-assigned snippets.
  @param string $snptName
  @return \nadir2\core\Snippet|\nadir2\core\Snippet[]|null