code: func (g *Graph) EdgesTo(v Vertex) []Edge {
  	var result []Edge
  	search := hashcode(v)
  	for _, e := range g.Edges() {
  		if hashcode(e.Target()) == search {
  			result = append(result, e)
  		}
  	}
  
  	return result
  }
docs: // EdgesTo returns the list of edges to the given target.