An am5flow data item keeps its band on link — a SankeyLink, a
ChordLink or the straight ArcDiagram line — which is the mark the
overlay measures. Unverifiable without the library, like every other sprite
read here, so an absent one answers undefined and the caller clears the
overlay rather than outlining something else.
The ribbon amCharts drew for one flow link.
An am5flow data item keeps its band on
link— aSankeyLink, aChordLinkor the straightArcDiagramline — which is the mark the overlay measures. Unverifiable without the library, like every other sprite read here, so an absent one answersundefinedand the caller clears the overlay rather than outlining something else.