ViewSpec

Mappings of vertex/edge types to their rendering and behaviour.

Name	Type	Description
edges?	Record<string,EdgeMapping>	Edge mappings for the view.
groups?	Record<string,GroupMapping<EL>>	Group mappings for the view.
nodes?	Record<string,NodeMapping<EL>>	Node mappings for the view.
ports?	Record<string,PortMapping<EL>>	Port mappings for the view.