Functions support

[Andromeda606]

Openai has function features, but types do not. Additionally, a design suitable for NestJS can be made by adding decorators.
Sample;

@OpenAiFunction('get_weather', {description: 'info'})
async function getWeather(
@Args({
     description: 'The city and state, e.g. San Francisco, CA', 
     type: 'string'
}) location,
){
  return fetch(`https://foo.bar/${location}`);
}

this.openAiService.chat({functions: ['get_weather']}); // or OpenAi.getFunction(getWeather)