Got docx not crashing when adding image

src/file/drawing/inline/effect-extent/effect-extent-attributes.ts

@@ -0,0 +1,17 @@
+import { XmlAttributeComponent } from "file/xml-components";
+
+export interface IEffectExtentAttributes {
+    b?: number;
+    l?: number;
+    r?: number;
+    t?: number;
+}
+
+export class EffectExtentAttributes extends XmlAttributeComponent<IEffectExtentAttributes> {
+    protected xmlKeys = {
+        b: "b",
+        l: "l",
+        r: "r",
+        t: "t",
+    };
+}

src/file/drawing/inline/effect-extent/effect-extent.ts

@@ -0,0 +1,16 @@
+import { XmlComponent } from "file/xml-components";
+import { EffectExtentAttributes } from "./effect-extent-attributes";
+
+export class EffectExtent extends XmlComponent {
+
+    constructor() {
+        super("wp:effectExtent");
+
+        this.root.push(new EffectExtentAttributes({
+            b: 0,
+            l: 0,
+            r: 0,
+            t: 0,
+        }));
+    }
+}