package app func findTransportClientIndex(items []TransportClient, id string) int { for i := range items { if items[i].ID == id { return i } } return -1 } func cloneMap(in map[string]any) map[string]any { if in == nil { return nil } out := make(map[string]any, len(in)) for k, v := range in { out[k] = v } return out }