FreeOpcUa / opcua-asyncio

    )

async def create_variable(parent, nodeid, bname, val, varianttype=None, datatype=None):

    """

    create a child node variable

    args are nodeid, browsename, value, [variant type], [data type]

    or idx, name, value, [variant type], [data type]

    """

    status = _check_browsename_exist(parent, bname)

    if status is not None:

        return status

    nodeid, qname = _parse_nodeid_qname(nodeid, bname)

    var = ua.Variant(val, varianttype)

    if datatype and isinstance(datatype, int):

        datatype = ua.NodeId(datatype, 0)

    if datatype and not isinstance(datatype, ua.NodeId):

        raise RuntimeError("datatype argument must be a nodeid or an int refering to a nodeid")

    return make_node(

        parent.server,

        await _create_variable(parent.server, parent.nodeid, nodeid, qname, var, datatype=datatype, isproperty=False)

    )

        )

async def create_property(parent, nodeid, bname, val, varianttype=None, datatype=None):

    """

    create a child node property

    args are nodeid, browsename, value, [variant type]

    or idx, name, value, [variant type]

    """

    status = _check_browsename_exist(parent, bname)

    if status is not None:

        return status

    nodeid, qname = _parse_nodeid_qname(nodeid, bname)

    var = ua.Variant(val, varianttype)

    if datatype and isinstance(datatype, int):

        datatype = ua.NodeId(datatype, 0)

    if datatype and not isinstance(datatype, ua.NodeId):

        raise RuntimeError("datatype argument must be a nodeid or an int refering to a nodeid")

    return make_node(

        parent.server,

        await _create_variable(parent.server, parent.nodeid, nodeid, qname, var, datatype=datatype, isproperty=True)

    )