The

prewarm()

method is used to initialize a database connection in the connection pool if no connections currently exist. It starts a background task that creates a new connection using

await self._connect()

and adds this connection to the available connections pool with

self._available.add(conn)

. This process does not block the main execution flow. Note that the method will not create a new connection if there are already existing connections or if a prewarming task is already running. Sources: livekit.agents.utils.connection_pool API documentation