VertexElem

VertexElem is derived class of GraphElem and is a base class representing an entity, junctor and group.

Field	Type	Description
`canHaveParent`	boolean	Read only. Returns `True`.
`parent`	Group or `None`	The parent Group of the element or `None` if the element is at the top of the hierarchy
`hasInEdges`	boolean	Read only. `True` if the element has any predecessors, implying it has at least one in-edge. Ignores back edges during a call to the operate method of Document.
`hasOutEdges`	boolean	Read only. `True` if the element has any successors, implying it has at least one out-edge. Ignores back edges during a call to the operate method of Document.
`inEdges`	list of Edge	Read only. A list of the element’s in-edges. Does not include back edges during a call to the operate method of Document
`outEdges`	list of Edge	Read only. A list of the element’s out-edges. Does not include back edges during a call to the operate method of Document
`index`	integer	Read only. The index of the element in chart view or zero if canvas not in chart view

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