rotateEdgeAsync method
Returns another edge of the same quad-edge.
https://docs.opencv.org/4.x/df/dbf/classcv_1_1Subdiv2D.html#aa1179507f651b67c22e06517fbc6a145
Implementation
Future<int> rotateEdgeAsync(int edge, int rotate) async =>
cvRunAsync((callback) => cffi.Subdiv2D_RotateEdge_Async(ref, edge, rotate, callback), intCompleter);