text: // *****************************************************************************
  // Copyright 2013-2018 Aerospike, Inc.
  //
  // Licensed under the Apache License, Version 2.0 (the "License")
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  // *****************************************************************************
  
  'use strict'
  
  const status = require('../status')
  const Command = require('./command')
  
  module.exports = asCommand => class ExistsCommand extends Command(asCommand) {
    convertResponse (error) {
      error = this.convertError(error)
      if (error && error.code === status.ERR_RECORD_NOT_FOUND) {
        return [null, false]
      } else if (error) {
        return [error, null]
      } else {
        return [null, true]
      }
    }
  }
  