code: function move($fromPath, $toPath)
      {
          Path::checkArgNonRoot("fromPath", $fromPath);
          Path::checkArgNonRoot("toPath", $toPath);
  
          $response = $this->doPost(
              $this->apiHost,
              "1/fileops/move",
              array(
                  "root" => "auto",
                  "from_path" => $fromPath,
                  "to_path" => $toPath,
              ));
  
          if ($response->statusCode !== 200) throw RequestUtil::unexpectedStatus($response);
  
          return RequestUtil::parseResponseJson($response->body);
      }
docs: Moves a file or folder to a new location.
  
  See <a href="https://www.dropbox.com/developers/core/docs#fileops-move">/fileops/move</a>.
  
  @param string $fromPath
  The source Dropbox path (UTF-8).
  
  @param string $toPath
  The destination Dropbox path (UTF-8).
  
  @return mixed
  The <a href="https://www.dropbox.com/developers/core/docs#metadata-details">metadata
  object</a> for the destination file or folder.
  
  @throws Exception