text: const mongoose = require('mongoose');
  const Schema = mongoose.Schema;
  const massDataSchema = require('./mass').schema
  
  
  const memberData = new mongoose.Schema({
      email: {type: String, required: true},
      password: {type: Number, required: true},
      name: {type: String, required: true},
      surname: {type: String, required: true},
      massData: [{ type: Schema.Types.ObjectId, ref: 'massDataSchema' }],
  }, {timestamps: true})
  
  module.exports = mongoose.model('memberData', memberData);