The Botium Crawler is doing the work of detecting the conversation flows supported by your chatbot by itself. It does so by analyzing the quick responses offered by your chatbot and simulating clicks on all of the options in parallel, following all pathes down until it reaches the end of the conversation.
All detected conversation flows along all pathes are saved as Botium test cases and utterance lists and can be used as base for a regression test set.
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See here for Botium documentation.