No typesafety when using helpers

[Faithfinder]

Not sure what I'm doing wrong here: https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBAbzgLQgE2BAzgGjiAQwGsBTAQTGD0NIFEA7NSYe+AXzgDMoIQ4AiAAIAvdJiwB6AMbQS-ANwAoUJFiI4wuB268BotAsWKZ9LPAKUAIiU4tgMTPTgBefMXKUAFAG1FcN3SMzKyeCH7+cAQANsAEWABcAgDmJDAAqlgkUFj8OOH+IKkAFuiJ-CkwuflwYAQwRWUSAK6Z2VURcFAkWJCmJInCAHQxMFnRnvxFJFFREPwAlHn+bIvhNCQMTBAsMKHV0bEJyakAyiD1Se0RhfWlx5VLEbX1jS1ZOY-+XT0QfQPD9jGUQmWHORUuq2WqwAuvMlIoSAAPVTwExmSKUADCMRIrBccHoJAA7igxNhPBZgNZbPR7I44UY0fA3tl8QQiQR7BjgNjgLiYIMKhl3p4GUyCb8kcAzAQ8a52ZzzFicaxBakAOpFUVKIA

[Faithfinder]

So, after playing with, I discovered it basically isn't supposed to work, and you should use apiBuilder instead, in this case? This isn't at all clear from the docs though, so I'll leave this here.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Faithfinder]

=P