const (
      maxPartSize        = int64(5 * 1024 * 1024)
      maxRetries         = 3
      awsAccessKeyID     = "Your access key"
      awsSecretAccessKey = "Your secret key"
      awsBucketRegion    = "S3 bucket region"
      awsBucketName      = "S3 bucket name"
      maxConnection = 5
  )

  Usage: aws-multipart-upload -file [filename] optional flags:[-path][-storage]
  -file filename
  -path /path with front slash, default is root folder
  -storage STANDARD/GLACIER/DEEP_ARCHIVE, default is STANDARD