Lists the MFA devices for an IAM user. If the request includes a IAM user name, then this action lists all the MFA devices associated with the specified user. If you do not specify a user name, IAM determines the user name implicitly based on the AWS access key ID signing the request for this API.
You can paginate the results using the MaxItems and Marker parameters.
/// The request was rejected because it referenced an entity that does not exist. The
/// error message describes the entity.
///
/// The request processing has failed because of an unknown error, exception or failure.
///