Add example for executing operation

examples/execute.py

@@ -0,0 +1,49 @@
+# pylint: disable=W0621
+"""Asynchronous Python client for IPP."""
+import asyncio
+
+from pyipp import IPP
+from pyipp.enums import IppOperation
+
+
+async def main() -> None:
+    """Show example of executing operation against your IPP print server."""
+    async with IPP("ipps://192.168.1.92:631/ipp/print") as ipp:
+        response = await ipp.execute(
+            IppOperation.GET_PRINTER_ATTRIBUTES,
+            {
+                "operation-attributes-tag": {
+                    "requested-attributes": [
+                        "printer-device-id",
+                        "printer-name",
+                        "printer-type",
+                        "printer-location",
+                        "printer-info",
+                        "printer-make-and-model",
+                        "printer-state",
+                        "printer-state-message",
+                        "printer-state-reason",
+                        "printer-supply",
+                        "printer-up-time",
+                        "printer-uri-supported",
+                        "device-uri",
+                        "printer-is-shared",
+                        "printer-more-info",
+                        "printer-firmware-string-version",
+                        "marker-colors",
+                        "marker-high-levels",
+                        "marker-levels",
+                        "marker-low-levels",
+                        "marker-names",
+                        "marker-types",
+                    ],
+                },
+            },
+        )
+
+        print(response)
+
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+    loop.run_until_complete(main())