Get information for all RDS instances
Value
a tibble of instance details; see https://www.paws-r-sdk.com/docs/describe_db_instances/
an empty tibble if no instances found
See also
Other database:
aws_db_cluster_status(),
aws_db_instance_status(),
aws_db_rds_con(),
aws_db_rds_create(),
aws_db_redshift_con(),
aws_db_redshift_create()