diff --git a/README.md b/README.md
index fb24f9c..e7f9dee 100644
--- a/README.md
+++ b/README.md
@@ -20,18 +20,15 @@ In order to use the library you need to generate an API Token on our [Developer
 ```javascript
 import { RegexSolver, Term } from 'regexsolver';
 
-async function main() {
-    RegexSolver.initialize("YOUR TOKEN HERE");
+RegexSolver.initialize("YOUR TOKEN HERE");
 
-    const term1 = Term.regex("(abc|de|fg){2,}");
-    const term2 = Term.regex("de.*");
-    const term3 = Term.regex(".*abc");
+const term1 = Term.regex("(abc|de|fg){2,}");
+const term2 = Term.regex("de.*");
+const term3 = Term.regex(".*abc");
 
-    const term4 = Term.regex(".+(abc|de).+");
+const term4 = Term.regex(".+(abc|de).+");
 
-    let result = await term1.intersection(term2, term3);
-    result = await result.subtraction(term4);
-
-    console.log(result.toString());
-}
+term1.intersection(term2, term3)
+    .then(result => result.subtraction(term4))
+    .then(result => console.log(result.toString()));
 ```
diff --git a/package.json b/package.json
index 7506b26..c3f96dd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "regexsolver",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
   "types": "lib/index.d.ts",
diff --git a/src/index.ts b/src/index.ts
index 7a3b18f..b3b9270 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -27,7 +27,8 @@ export class RegexSolver {
         instance.apiClient = axios.create({
             baseURL: baseURL,
             headers: {
-                'Authorization': `Bearer ${apiToken}`
+                'Authorization': `Bearer ${apiToken}`,
+                'User-Agent': 'RegexSolver Node.js / 1.0.1',
             }
         });
     }
@@ -82,7 +83,7 @@ export class Term {
 
     private details?: Details;
     constructor(
-        private type: string,
+        private type: 'regex' | 'fair',
         private value: string
     ) {
     }
@@ -95,6 +96,10 @@ export class Term {
         return new Term(Term.FAIR_PREFIX, fair);
     }
 
+    getType(): 'regex' | 'fair' {
+        return this.type;
+    }
+
     getFair(): string | void {
         if (this.type == Term.FAIR_PREFIX) {
             return this.value;
@@ -166,7 +171,7 @@ export class Term {
 }
 
 interface TermTransient {
-    type: string;
+    type: 'regex' | 'fair';
     value: string;
 }