# Functions

NewRDSClient loads AWS Config and creds, and returns an RDS client.
NewRedshiftClient loads AWS Config and creds, and returns an Redshift client.

# Structs

DBInstanceResult is wrapper around a DBInstance or error as a result of listing RDS Instances.
RedshiftClusterResult is wrapper around a DBInstance or error as a result of listing Redshift cluster.

# Interfaces

RDSClient is our wrapper around the RDS library, allows us to mock this for testing.
RedshiftClient is our wrapper around the Redshift library, allows us to mock this for testing.