Add example for balance

Author: ad-m

examples/balance.py

@@ -0,0 +1,13 @@
+from os import environ
+from pprint import pprint
+from python_anticaptcha import AnticaptchaClient, ImageToTextTask
+from sys import argv
+api_key = environ["KEY"]
+
+
+def process():
+    client = AnticaptchaClient(api_key)
+    pprint(client.getBalance())
+
+if __name__ == "__main__":
+    pprint(process())