def initialize_event_source(source, node_pool_size, monitor_params):
    """
    Initializes the Karabo event source at XFEL.

    This function must be called on the master node before the :func:`event_generator`
    function is called on the worker nodes. There is no need to initialize the Karabo
    event source, so this function actually does nothing.

    Arguments:

        source (str): the hostname (or IP address) and the port where the Karabo Bridge
            is running, separated by a colon.

        node_pool_size (int): the total number of nodes in the OnDA pool, including all
            the worker nodes and the master node.

        monitor_params (:class:`~onda.utils.parameters.MonitorParams`): an object
            storing the OnDA monitor parameters from the configuration file.
    """
    del source
    del node_pool_size
    del monitor_params
