text: import mongoose from 'mongoose';
  const Schema = mongoose.Schema;
  
  const stickers = new Schema({
      stickerId: String,
      filePath: String,
      // searchWords: [{type: Schema.Types.ObjectId, ref: 'Searchword'}]
  });
  
  stickers.virtual('searchWords', {
      ref: 'Searchword',
      localField: 'stickerId',
      foreignField: 'parentStickerId',
      justOne: false,
  });
  
  stickers.set('toJSON', { getters: true, virtuals: true });
  
  mongoose.model('Stickers', stickers);