If the user don't read the docs carefully, they sometimes miss to set up api key for their modules.
It is super common for using openai, and when they include external service like cohere or JinaAI, it is even harder to setup all of things.

So, when starting trial, automatically checks the valid api key was given, and if not, get the api key as input from user directly.

There are two options for using api key.

1. As env variable.
2. As module parameter api_key or something other.

This will enhance user's experience.