Lists all of the attributes for a customer account. The attributes include Amazon RDS quotas for the account, such as the number of DB instances allowed. The description for a quota includes the quota name, current usage toward that quota, and the quota's maximum value.
This command doesn't take any parameters.
rds_describe_account_attributes()
A list with the following syntax:
list( AccountQuotas = list( list( AccountQuotaName = "string", Used = 123, Max = 123 ) ) )
svc$describe_account_attributes()