public function file($key) {
    if (!isset($this->files[$key])) {
      return null;
    }
    
    return $this->createFile($this->files[$key]);
  }
public function file($key) {
    if (!isset($this->files[$key])) {
      return null;
    }
    
    return $this->createFile($this->files[$key]);
  }
public function file ( $ key ) { if ( ! isset ( $ this -> files [ $ key ] ) ) { return null ; } return $ this -> createFile ( $ this -> files [ $ key ] ) ; }
Get file by key

@param int $key
@return \Nuki\Models\Data\File
Get file by key