docx-js/src/file/custom-properties/custom-property-attributes.ts

import { XmlAttributeComponent } from "file/xml-components";

export class CustomPropertyAttributes extends XmlAttributeComponent<{
    readonly fmtid: string;
    readonly pid: string;
    readonly name: string;
}> {
    protected readonly xmlKeys = {
        fmtid: "fmtid",
        pid: "pid",
        name: "name",
    };
}