Rate Plan object is used when Anveo returns a list of area codes with DID availability with ANVEO.AREAS.LIST API action.
Rate Plan object has the following attributes:
RATE_PLAN_ID [string] - Rate plan id
RATE_PLAN_NAME [string] - Rate plan name
MONTHLY100 [number] - monthly price for a phone number multiplied by 100
SETUP100 [number] - setup fee for a phone number multiplied by 100
