LoadCredentials loads credentials from the aws credentials file and roles from the aws config file which may be used later.

TryLoadCredentials works like LoadCredentials but attempts to partially load the credentials in the presence of unloadable accounts.

TryLoadCredentialsWithOptions works just like TryLoadCredentials but allows caller to specify options for loading the credentials.

CredentialsOptions contains options for loading credentials.

CredentialsStore records AWS credentials (IAM users and roles) for multiple accounts.