text: const mongoose = require('mongoose')
  const findOrCreate = require('mongoose-findorcreate')
  let tagSchema = mongoose.Schema({
    tag: {
      type: String,
      unique: true
    },
    tweets: [String],
    date: String
  })
  tagSchema.plugin(findOrCreate)
  let Tag = mongoose.model('Tag', tagSchema)
  module.exports = mongoose.model('Tag')
  
  