def import_lane_element(lane_element, plane_element):
        """
        Method for importing 'laneSet' element from diagram file.

        :param lane_element: XML document element,
        :param plane_element: object representing a BPMN XML 'plane' element.
        """
        lane_id = lane_element.getAttribute(consts.Consts.id)
        lane_name = lane_element.getAttribute(consts.Consts.name)
        child_lane_set_attr = {}
        flow_node_refs = []
        for element in utils.BpmnImportUtils.iterate_elements(lane_element):
            if element.nodeType != element.TEXT_NODE:
                tag_name = utils.BpmnImportUtils.remove_namespace_from_tag_name(element.tagName)
                if tag_name == consts.Consts.child_lane_set:
                    child_lane_set_attr = BpmnDiagramGraphImport.import_child_lane_set_element(element, plane_element)
                elif tag_name == consts.Consts.flow_node_ref:
                    flow_node_ref_id = element.firstChild.nodeValue
                    flow_node_refs.append(flow_node_ref_id)

        lane_attr = {consts.Consts.id: lane_id, consts.Consts.name: lane_name,
                     consts.Consts.child_lane_set: child_lane_set_attr,
                     consts.Consts.flow_node_refs: flow_node_refs}

        shape_element = None
        for element in utils.BpmnImportUtils.iterate_elements(plane_element):
            if element.nodeType != element.TEXT_NODE and element.getAttribute(consts.Consts.bpmn_element) == lane_id:
                shape_element = element
        if shape_element is not None:
            bounds = shape_element.getElementsByTagNameNS("*", "Bounds")[0]
            lane_attr[consts.Consts.is_horizontal] = shape_element.getAttribute(consts.Consts.is_horizontal)
            lane_attr[consts.Consts.width] = bounds.getAttribute(consts.Consts.width)
            lane_attr[consts.Consts.height] = bounds.getAttribute(consts.Consts.height)
            lane_attr[consts.Consts.x] = bounds.getAttribute(consts.Consts.x)
            lane_attr[consts.Consts.y] = bounds.getAttribute(consts.Consts.y)
        return lane_attr