Property 'size' does not exist on type code example

Example: Property 'users' does not exist on type 'UsersDTO[]'. 29 if (saveUser.users.length < 1) {

// for JSON:
const { value } = ctx.request.body({ type: "json" });
const { text } = await value;

// for FormData:
const { value } = ctx.request.body({ type: "form-data" });
const formData = await value.read();
const { text } = formData.fields;