"Mounting" means adding a completely "independent" application in a specific path, that then takes care of handling everything under that path, with the _path operations_ declared in that sub-application.

### Top-level application { #top-level-application }

First, create the main, top-level, **FastAPI** application, and its *path operations*:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[3, 6:8] *}

func IsLikelyMountPoint(path string) bool {
	path = filepath.Dir(path)
	if v, ok := mountPointCache.Load(path); ok {
		if b, ok := v.(bool); ok {
			return b
		}
	}
	wpath, _ := windows.UTF16PtrFromString(path)
	wvolume := make([]uint16, len(path)+1)

	if err := windows.GetVolumePathName(wpath, &wvolume[0], uint32(len(wvolume))); err != nil {
		mountPointCache.Store(path, false)
		return false
	}

     *
     * @return the ttl
     */
    public final int getTtl() {
        return this.ttl;
    }

    /**
     * Gets the referral path.
     *
     * @return the rpath
     */
    public final String getRpath() {
        return this.rpath;
    }

    /**
     * Gets the node name for this referral.
     *
     * @return the node
     */
    public final String getNode() {

            }
            if (rpath != null) {
                // resolveDfs() and tree.send() modify the request packet.
                // I want to restore it before retrying. request.reset()
                // restores almost everything that was modified, except the path.
                rpath.setPath(savedPath);
                rpath.setFullUNCPath(rpath.getDomain(), rpath.getServer(), savedFullPath);
            }

        final String xpath = xpathConfigMap.get(XPath.DEFAULT_LANG);
        if (StringUtil.isNotBlank(xpath)) {
            return xpath;
        }
        return fessConfig.getCrawlerDocumentHtmlLangXpath();
    }

    /**
     * Gets the XPath expression for extracting content.
     *
     * @param fessConfig the Fess configuration
     * @param xpathConfigMap the XPath configuration map

    }

    /**
     * Adds a field rule to the transformer.
     * @param name The name of the field.
     * @param xpath The XPath expression for the field.
     */
    public void addFieldRule(final String name, final String xpath) {
        fieldRuleMap.put(name, xpath);
    }

    /**
     * Returns data as XML content of String.
     *
     * @return XML content of String.
     */

    }

    /**
     * Gets the XPath expression for selecting target nodes.
     *
     * @return the target node path
     */
    public String getTargetNodePath() {
        return targetNodePath;
    }

    /**
     * Sets the XPath expression for selecting target nodes.
     *
     * @param targetNodePath the target node path to set
     */

Sebastián Ramírez <******@****.***> 1731896744 +0100

Sebastián Ramírez <******@****.***> 1731896744 +0100

	// Check if new heal sequence to be started overlaps with any
	// existing, running sequence
	hpath := pathJoin(h.bucket, h.object)
	for k, hSeq := range ahs.healSeqMap {
		if !hSeq.hasEnded() && (HasPrefix(k, hpath) || HasPrefix(hpath, k)) {
			errMsg = "The provided heal sequence path overlaps with an existing " +
				fmt.Sprintf("heal path: %s", k)
			return nil, errorCodes.ToAPIErr(ErrHealOverlappingPaths), errMsg
		}
	}