Method log

src/mcp/server/mcpserver/context.py:187–208

Send a log message to the client. Args: level: Log level (debug, info, notice, warning, error, critical, alert, emergency) data: The data to be logged. Any JSON serializable type is allowed (string, dict, list, number, bool, etc.) per

(
        self,
        level: LoggingLevel,
        data: Any,
        *,
        logger_name: str | None = None,
    )

    @deprecated("The logging capability is deprecated as of 2026-07-28 (SEP-2577).", category=MCPDeprecationWarning)
    async def log(
        self,
        level: LoggingLevel,
        data: Any,
        *,
        logger_name: str | None = None,
    ) -> None:
        """Send a log message to the client.

        Args:
            level: Log level (debug, info, notice, warning, error, critical,
                alert, emergency)
            data: The data to be logged. Any JSON serializable type is allowed
                (string, dict, list, number, bool, etc.) per the MCP specification.
            logger_name: Optional logger name
        """
        await self.request_context.session.send_log_message(  # pyright: ignore[reportDeprecated]
            level=level,
            data=data,
            logger=logger_name,
            related_request_id=self.request_id,
        )

    # TODO(maxisbey): see if this is needed otherwise remove
    @property