aws_access_key: 'youraccesskey'
aws_secret_access_key: 'yoursecretkey'
## options for Client or NamedBucket instances
options:
  strict: true
  public_contents: true
  use_ssl: false
  default_bucket: 'nobucket'
## extensions used in your own program
custom:
  to_email: 'me@example.com'
  from_email: 'you@example.com'