def __init__(self, parent=None, root_node=None, horizontal_headers=None, vertical_headers=None, default_node=None):
        """
        Initializes the class.

        :param parent: Object parent.
        :type parent: QObject
        :param root_node: Root node.
        :type root_node: AbstractCompositeNode
        :param horizontal_headers: Headers.
        :type horizontal_headers: OrderedDict
        :param vertical_headers: Headers.
        :type vertical_headers: OrderedDict
        :param default_node: Default node.
        :type default_node: GraphModelNode
        """

        LOGGER.debug("> Initializing '{0}()' class.".format(self.__class__.__name__))

        umbra.ui.models.GraphModel.__init__(
            self, parent, root_node, horizontal_headers, vertical_headers, default_node)
def __init__ ( self , parent = None , root_node = None , horizontal_headers = None , vertical_headers = None , default_node = None ) : LOGGER . debug ( "> Initializing '{0}()' class." . format ( self . __class__ . __name__ ) ) umbra . ui . models . GraphModel . __init__ ( self , parent , root_node , horizontal_headers , vertical_headers , default_node )
Initializes the class.

        :param parent: Object parent.
        :type parent: QObject
        :param root_node: Root node.
        :type root_node: AbstractCompositeNode
        :param horizontal_headers: Headers.
        :type horizontal_headers: OrderedDict
        :param vertical_headers: Headers.
        :type vertical_headers: OrderedDict
        :param default_node: Default node.
        :type default_node: GraphModelNode