code: public function deleteBackups($filePaths = [])
      {
          if (empty($filePaths)) {
              $allBackups = $this->getBackups();
              foreach ($allBackups as $backup) {
                  $filePaths[] = $backup['filepath'];
              }
          }
  
          foreach ($filePaths as $filePath) {
              if (is_file($filePath)) {
                  unlink($filePath);
              }
          }
          return $this;
      }
docs: Delete all or the given backup files
  
  @param  array  $filePaths
  
  @return DotenvEditor