Creates a DBSnapshot. The source DBInstance must be in "available" state.
rds_create_db_snapshot(DBSnapshotIdentifier, DBInstanceIdentifier, Tags)
[required] The identifier for the DB snapshot.
Constraints:
Can't be null, empty, or blank
Must contain from 1 to 255 letters, numbers, or hyphens
First character must be a letter
Can't end with a hyphen or contain two consecutive hyphens
Example: my-snapshot-id
[required] The identifier of the DB instance that you want to create the snapshot of.
Constraints:
Must match the identifier of an existing DBInstance.
svc$create_db_snapshot( DBSnapshotIdentifier = "string", DBInstanceIdentifier = "string", Tags = list( list( Key = "string", Value = "string" ) ) )