Exclude log entries based on channel and level from Symfony logging

My Current configuration:

monolog:
    handlers:
        target_main:
            type:         fingers_crossed
            action_level: debug
            handler: file_log
            channels: ['!security' '!request']
        file_log:
            type: rotating_file
            path: "%kernel.logs_dir%/%kernel.environment%.log"
            level: debug
            max_files: 2

Now request channel is completely excluded from file_log handler. I need to exclude only action_level - debug from channel request and not request channel totally. Is it possible with symfony monolog configuration and if yes how?