(character) String containing a spaces region. If
missing, defaults to value stored in an environment variable
DO_SPACES_REGION.
spaces_key
(character) String containing a spaces access key. If
missing, defaults to value stored in an environment variable
DO_SPACES_ACCESS_KEY.
spaces_secret
(character) String containing the secret associated
with the spaces key. If missing, defaults to value stored in an environment
variable DO_SPACES_SECRET_KEY.