Get pre-quote document requirements

Supporting-document policy for a destination currency, by name or numeric id. Unauthenticated; no customer, account, amount, or quote is needed. Conditional thresholds use the destination amount; route_conditions name payout routes that require a document at any amount for a third-party beneficiary; bank_country_conditions name beneficiary bank countries where a payout can require one at any amount, in any currency. Read the selected priced quote's acceptance_requirements.files_required for the evaluated result. This policy does not establish corridor eligibility; additional documents may be requested during processing.