text: const mongoose = require('mongoose');   // mongoose import
  
  // defining the DB Schema for wrapping operation storage
  const keyManager = mongoose.Schema({
      _id: mongoose.Schema.Types.ObjectId,
      id: {type: Number, required: true, immutable: true},//UNIQUE
      publicKey: {type: String, required: true, immutable: true},
      curve: {type: String, required: true, immutable: true}
  });
  
  // exporting the model/schema
  module.exports = mongoose.model('KeyManager', keyManager);