combineNestedSvgPaths not an option in roughjs

[mavaddat]

Option	Type
maxRandomnessOffset	number
roughness	number
bowing	number
stroke	string
strokeWidth	number
curveFitting	number
curveTightness	number
curveStepCount	number
fillStyle	string
fillWeight	number
hachureAngle	number
hachureGap	number
dashOffset	number
dashGap	number
zigzagOffset	number
seed	number
randomizer?	Random
disableMultiStroke	boolean
disableMultiStrokeFill	boolean
preserveVertices	boolean