Introduce the send event once to the IterativeTelemetryLogger class

It will be used by datachain to send events to the telemetry server

Author: amritghimire

src/iterative_telemetry/__init__.py

@@ -59,6 +59,7 @@ def __init__(
             logger.setLevel(logging.DEBUG)
             logger.debug("IterativeTelemetryLogger is in debug mode")
         self._current_event: Optional[TelemetryEvent] = None
+        self._event_sent = False
 
     def log_param(self, key: str, value):
         if self._current_event:
@@ -133,6 +134,22 @@ def send_event(
             use_daemon=use_daemon,
         )
 
+    def send_event_once(
+            self, interface: str,
+            action: str, error: str = None,
+            use_thread: bool = False,
+            use_daemon: bool = True,
+            **kwargs
+    ):
+        if self._event_sent:
+            return
+
+        self.send_event(
+            interface, action, error=error, use_thread=use_thread, use_daemon=use_daemon, **kwargs
+        )
+        self._event_sent = True
+
+
     def is_enabled(self):
         return (
             os.environ.get(DO_NOT_TRACK_ENV, None) is None and self.enabled()