Add vision of Python API

main.py

@@ -1,5 +1,19 @@
 #!/bin/env python
-from pyority_queue import sum_as_string
+from pyority_queue import PureQueue, KeyedQueue
 
 
-print(sum_as_string(10, 15))
+def main() -> None:
+	pure = PureQueue()
+	pure["second"] = 3.4
+	pure["first"] = 1.2
+	pure["third"] = 5.6
+	print(*pure)
+
+	keyed = KeyedQueue({"third": 5.6, "second": 3.4, "first": 7.8})
+	del keyed["third"]
+	keyed["first"] = 1.2
+	print(*keyed)
+
+
+if __name__ == "__main__":
+    main()