feat: add typings for the node bindings

Fixes #3072

cli/src/generate/templates/index.d.ts

@@ -0,0 +1,28 @@
+type BaseNode = {
+  type: string;
+  named: boolean;
+};
+
+type ChildNode = {
+  multiple: boolean;
+  required: boolean;
+  types: BaseNode[];
+};
+
+type NodeInfo =
+  | (BaseNode & {
+      subtypes: BaseNode[];
+    })
+  | (BaseNode & {
+      fields: { [name: string]: ChildNode };
+      children: ChildNode[];
+    });
+
+type Language = {
+  name: string;
+  language: unknown;
+  nodeTypeInfo: NodeInfo[];
+};
+
+declare const language: Language;
+export = language;

cli/src/generate/templates/package.json

@@ -4,6 +4,7 @@
   "description": "CAMEL_PARSER_NAME grammar for tree-sitter",
   "repository": "github:tree-sitter/tree-sitter-PARSER_NAME",
   "license": "MIT",
+  "types": "bindings/node",
   "main": "bindings/node",
   "files": [
     "grammar.js",