metagraphoptimization.jl/src/diff/properties.jl

# return a namedtuple of the lengths of the added/removed nodes/edges
function length(diff::Diff)
    return (
        addedNodes = length(diff.addedNodes),
        removedNodes = length(diff.removedNodes),
        addedEdges = length(diff.addedEdges),
        removedEdges = length(diff.removedEdges),
    )
end