Creates a policy.
A policy is an insurance contract between an insurance company and a person or company with some potential for economic loss from property being damaged. A policy associated with an account includes the inception and expiration dates, blanket limit, deductible, and reinsurance (if any), for one peril, applying to all locations.
This operation supports idempotency by means of idempotency keys. To learn more, see Idempotent Requests.