FreeOpcUa / opcua-asyncio

    return properties

async def get_event_variables_from_type_node(node):

    variables = []

    curr_node = node

    while True:

        variables.extend(await curr_node.get_variables())

        if curr_node.nodeid.Identifier == ua.ObjectIds.BaseEventType:

            break

        parents = await curr_node.get_referenced_nodes(

            refs=ua.ObjectIds.HasSubtype, direction=ua.BrowseDirection.Inverse, includesubtypes=True

        )

        if len(parents) != 1:  # Something went wrong

            return None

        curr_node = parents[0]

    return variables

async def get_event_obj_from_type_node(node):

    return cf

async def get_event_variables_from_type_node(node):

    variables = []

    curr_node = node

    while True:

        variables.extend(await curr_node.get_variables())

        if curr_node.nodeid.Identifier == ua.ObjectIds.BaseEventType:

            break

        parents = await curr_node.get_referenced_nodes(

            refs=ua.ObjectIds.HasSubtype, direction=ua.BrowseDirection.Inverse, includesubtypes=True)

        if len(parents) != 1:  # Something went wrong

            return None

        curr_node = parents[0]

    return variables

async def get_event_properties_from_type_node(node):