HttpApiSchema.param AnyString type-error

export const STATES = [
  { min: 35000, max: 36999, code: "AL", long: "Alabama" },
  // all the states
  { min: 82000, max: 83199, code: "WY", long: "Wyoming" },
] as const;

export const StateCodesSchema = Schema.Literal(
  ...STATES.map(({ code }) => code),
);

export type StateCode = typeof StateCodesSchema.Type; // "AL" | ...all other states | "WY"

const stateCodeParam = HttpApiSchema.param("stateCode", StateCodesSchema); // type-error

Type 'string' is not assignable to type '"AL" | ... | "WY"'. tsserver (2345) [10, 57]