feat(package): interface definitions

package/tsconfig.json

@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    "baseUrl": ".",
+    "strict": true,
+    "module": "CommonJS",
+    "types": ["@types/node"],
+    "declaration": true,
+    "sourceMap": true,
+    "target": "ESNext",
+    "allowJs": false,
+    "lib": ["ESNext"],
+    "noEmitOnError": false,
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "moduleResolution": "node",
+    "experimentalDecorators": true,
+    "noImplicitAny": false,
+    "noEmit": false
+  },
+  "include": ["client"],
+  "exclude": ["**/node_modules"]
+}