And we need to get the dependency function from the module `app.dependencies`, the file `app/dependencies.py`.

So we use a relative import with `..` for the dependencies:

```Python hl_lines="3" title="app/routers/items.py"
{!../../docs_src/bigger_applications/app/routers/items.py!}
```

#### How relative imports work

/// tip

If you know perfectly how imports work, continue to the next section below.

///

            PacUnicodeString serverNameString = pacStream.readUnicodeString();
            PacUnicodeString domainNameString = pacStream.readUnicodeString();

            // ID for domain (used with relative IDs to get SIDs)
            int domainIdPointer = pacStream.readInt();

            // Skip some reserved fields
            pacStream.skipBytes(8);

            this.userAccountControl = pacStream.readInt();

# JSR 305 annotations are for embedding nullability information.
-dontwarn javax.annotation.**

# A resource is loaded with a relative path so the package of this class must be preserved.
-keeppackagenames okhttp3.internal.publicsuffix.*
-adaptresourcefilenames okhttp3/internal/publicsuffix/PublicSuffixDatabase.gz

# Animal Sniffer compileOnly dependency to ensure APIs are compatible with older versions of Java.
-dontwarn org.codehaus.mojo.animal_sniffer.*

     * "never" so that they can handle unexpected changes to those pages.
     */
    private String changefreq;

    /**
     * The priority of this URL relative to other URLs on your site. Valid
     * values range from 0.0 to 1.0. This value does not affect how your pages
     * are compared to pages on other sites—it only lets the search engines know

		if f.Size == 0 {
			f.Size = ref.ForeignKey.Size
		}
		ref.ForeignKey = f
	}

	for name, rel := range relation.JoinTable.Relationships.Relations {
		if _, ok := joinSchema.Relationships.Relations[name]; !ok {
			rel.Schema = joinSchema
			joinSchema.Relationships.Relations[name] = rel
		}
	}
	relation.JoinTable = joinSchema

	return nil
}

// Use use plugin
func (db *DB) Use(plugin Plugin) error {

        <jsp:param name="menuCategoryType" value="dashboard"/>
        <jsp:param name="menuType" value="dashboard"/>
    </jsp:include>

    <div class="content-wrapper position-relative">
        <iframe class="w-100 h-100 position-absolute" frameborder="0"
                src="<%=request.getContextPath()%>${serverPath}<%= response.encodeURL("/_plugin/kopf/") %>"
                seamless></iframe>
    </div>

						if rel, ok := sch.Relationships.Relations[names[0]]; ok {
							subNameCount := len(names)
							// nested relation fields
							relFields := make([]*schema.Field, 0, subNameCount-1)
							relFields = append(relFields, rel.Field)
							for _, name := range names[1 : subNameCount-1] {
								rel = rel.FieldSchema.Relationships.Relations[name]
								relFields = append(relFields, rel.Field)
							}

    URL url = loader.getResource(resourceName);
    checkArgument(url != null, "resource %s not found.", resourceName);
    return url;
  }

  /**
   * Given a {@code resourceName} that is relative to {@code contextClass}, returns a {@code URL}
   * pointing to the named resource.
   *
   * @throws IllegalArgumentException if the resource is not found
   */

    private final Pattern markdownLinkPattern = Pattern.compile("\\[[^]]+]\\([^)^\\\\]+\\)");

    @InputDirectory
    @PathSensitive(PathSensitivity.RELATIVE)
    public abstract DirectoryProperty getDocumentationRoot();

    @InputDirectory
    @PathSensitive(PathSensitivity.RELATIVE)
    public abstract DirectoryProperty getJavadocRoot();

    @OutputFile
    public abstract RegularFileProperty getReportFile();

    @TaskAction

            s = file.getPath();
        } else if (file.getPath().startsWith(File.separator)) {
            // drive-relative Windows path, don't align with project directory but with drive root
            s = file.getAbsolutePath();
        } else {
            // an ordinary relative path, align with project directory
            s = new File(new File(basedir, s).toURI().normalize()).getAbsolutePath();
        }