Changes to Finish billing sign-up for the caller

added the new awaiting_card enum value to the trial/state response property for the response status 200

removed the optional property failed_first_purchase from the response with the 200 status

removed the failed_first_purchase enum value from the unavailable/items response property for the response status 200

added the optional property payment_method to the response with the 200 status

added the new expired enum value to the trial/state response property for the response status 200

added the optional property balance/next_expiry to the response with the 200 status

added the optional property trial/credit_expired_cents to the response with the 200 status

added the optional property trial/expires_at to the response with the 200 status

added the new withheld enum value to the trial/state response property for the response status 200

added the required property balance/granted_cents to the response with the 200 status

added the optional property automatic_top_up to the response with the 200 status

added the optional property balance to the response with the 200 status

added the optional property card to the response with the 200 status

added the optional property failed_first_purchase to the response with the 200 status

added the optional property overage to the response with the 200 status

added the optional property runs_paused to the response with the 200 status

added the optional property unavailable to the response with the 200 status

the currency response property const value usd was added for the status 200

added the optional property trial to the response with the 200 status

endpoint added