Aws.config[:efs] = {
  stub_responses: {
    describe_file_systems: {
      file_systems: [
        {
          size_in_bytes: {
            timestamp: Time.new(2017, 1, 2, 10, 0, 0, '+00:00'),
            value: 6144
          },
          creation_token: 'console-1234abcd-1234-abcd-1234-abcd56789012',
          creation_time: Time.new(2017, 1, 2, 10, 0, 0, '+00:00'),
          file_system_id: 'fs-5678acdc',
          number_of_mount_targets: 1,
          life_cycle_state: 'available',
          owner_id: '123456789012',
          performance_mode: 'generalPurpose'
        }
      ]
    },
    describe_tags: {
      tags: [
        {
          value: 'my-value',
          key: 'my-key'
        },
        {
          value: 'my-efs',
          key: 'Name'
        }
      ]
    }
  }
}
