support export *

[switchupcb]

This issue potentially stems from incorrect use of this library. I want to convert all of the types in the v9.ts:

export * from './gateway/v9';
export * from './globals';
export * from './payloads/v9/index';
export * from './rest/v9/index';
export * from './rpc/v9';
export * as Utils from './utils/v9';

The generated JSON is empty.