Fix for Instagram's changed N1 data

src/lib/structures/TimelineEntry.js

@@ -166,8 +166,12 @@ class TimelineEntry extends TimelineBaseMethods {
 		if (this.getType() !== constants.symbols.TYPE_GALLERY) {
 			return this.children = [new TimelineChild(this.data)]
 		}
-		// Fetch children if needed
+		/** @type {import("../types").Edges<import("../types").GraphChildN1>|import("../types").Edges<import("../types").GraphChildVideoN3>} */
-		if (!this.data.edge_sidecar_to_children) {
+		// @ts-ignore
+		const children = this.data.edge_sidecar_to_children
+		// It's a gallery, so we may need to fetch its children
+		// We need to fetch children if one of them is a video, because N1 has no video_url.
+		if (!children || !children.edges.length || children.edges.some(edge => edge.node.is_video && !edge.node.video_url)) {
 			await this.update()
 		}
 		// Create children

src/lib/types.js

@@ -194,9 +194,26 @@
  * @typedef {TimelineEntryN1 & GraphSidecarN1Diff} GraphSidecarN1
  *
  * @typedef GraphSidecarN1Diff
+ * @property {Edges<GraphChildN1>} edge_sidecar_to_children
  * @property {"GraphSidecar"} __typename
  */
 
+/**
+ * @typedef GraphChildN1
+ * @property {string} __typename
+ * @property {string} id
+ * @property {string} shortcode interestingly, each child of a post has a different shortcode.
+ * @property {Dimensions} dimensions
+ * @property {string} display_url
+ * @property {any} gating_info todo: discover
+ * @property {any} fact_check_overall_rating todo: discover
+ * @property {any} fact_check_information todo: discover
+ * @property {string} media_preview base64 of something
+ * @property {BasicOwner} owner
+ * @property {boolean} is_video
+ * @property {string} accessibility_caption
+ */
+
 /**
  * @typedef TimelineEntryN2
  * @property {string} __typename