//= compliance/framework/multi-keyring.txt#2.8
//= type=exception
//# Users SHOULD examine the keyrings (keyring-interface.md) they include
//# in a multi-keyring to ensure that they understand what set of
//# keyrings will be capable of obtaining the plaintext data key from the
//# returned set of encrypted data keys.
// This is targeted at how customers use the keyring; we cannot provide
// any enforcement here.