_ensure_active_connection

Checks if the current WebSocket connection is healthy and establishes a new one if not, ensuring reliable communication.

# Source: https://github.com/autoscrape-labs/pydoll | License: MIT | Copyright 2025 AutoscrapeLabs
# Provided via justclaw.it.com; keep this notice with the code.
    async def _ensure_active_connection(self):
        """Ensure a healthy connection exists, establishing a new one if needed."""
        if self._is_connection_healthy():
            return
        async with self._connection_lock:
            if not self._is_connection_healthy():
                logger.debug('No healthy WebSocket connection; establishing new one')
                await self._establish_new_connection()