Locate AWS credentials
locate_credentials(profile = "", anonymous = FALSE)
list containing AWS credentials
access_key_id - (character) AWS access key ID
secret_access_key - (character) AWS secret access key
session_token - (character) AWS temporary session token
access_token - (character) A token that gives a user permission to access certain resources
expiration - (numeric) Indicates the Unix time when an access token will expire.
region - (character) The AWS Region used in instantiating the client.
The name of a profile to use. If not given, then the default profile is used.
Set anonymous credentials.