/**
 * Approximate cost of collapsing an edge, removing victim vertex from topology and merging it with the target vertex
 * NOTE: adapted from THREE.js mesh simplification code
 * @param {TopoVertex} victim
 * @param {TopoVertex} target
 * @param {TopoEdge} victim_edge
 * @param {Map<number, Quadric3>} vertex_quadratics
 * @return {number}
 */
export function computeEdgeCollapseCost(victim: TopoVertex, target: TopoVertex, victim_edge: TopoEdge, vertex_quadratics: Map<number, Quadric3>): number;
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