docs: public OpenPgpV4Fingerprint generateAndImportKeyPair(BareJid ourJid)
              throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, NoSuchProviderException,
              PGPException, IOException {
  
          throwIfNoProviderSet();
          OpenPgpStore store = provider.getStore();
          PGPKeyRing keys = store.generateKeyRing(ourJid);
          try {
              store.importSecretKey(ourJid, keys.getSecretKeys());
              store.importPublicKey(ourJid, keys.getPublicKeys());
          } catch (MissingUserIdOnKeyException e) {
              // This should never throw, since we set our jid literally one line above this comment.
              throw new AssertionError(e);
          }
  
          OpenPgpV4Fingerprint fingerprint = new OpenPgpV4Fingerprint(keys.getSecretKeys());
  
          store.setTrust(ourJid, fingerprint, OpenPgpTrustStore.Trust.trusted);
  
          return fingerprint;
      }