How do I implement something like isAllOf?

[jadedevin13]

I tried using exclusive = false but the inferred type in typescript is still using the | and not & operator for types. On top of that I'm getting an error.

export const isRelationFieldType = t.applyCascade(
  t.isOneOf(
    [
      t.isOneOf(
        [
          t.isObject({
            code: t.isLiteral("relationship"),
            name: t.isLiteral("Relationship"),
          }),
        ],
        { exclusive: true }
      ),
      t.isObject({ isList: t.isBoolean() }),
    ],
  ),
  []
);

const errors = [];
isRelationFieldType({
      code: "relationship",
      name: "Relationship",
      isList: false,
    }, {errors});

console.log(errors);