Function signUp

signUp(
    __namedParameters: {
        email: string;
        firstName?: string;
        formsAppId: number;
        lastName?: string;
    },
): Promise<void>
Allow a user to sign up to a forms app.

Example
```
await authService.signUp({
  formsAppId: 1,
  email: 'test@oneblink.io',
  firstName: 'first',
  lastName: 'last',
})
```
Parameters
- __namedParameters: { email: string; firstName?: string; formsAppId: number; lastName?: string }
Returns Promise<void>
- Defined in src/apps/auth-service.ts:259