The maximum hypotheses per utterance for this chatbot.
For every utterance, a Chat action can formulate several hypotheses, ordered from the most probable to the least probable.
For each hypothesis, the Chatbots will be called in order of priority until a suitable ReplyReaction is found.
This value limits the number of times a single Chatbot will be called for each utterance.
For a Chatbot, the default value of this property is 2.
If the provided value is negative or 0, the Chatbot won't be called at all.
maxHypothesesPerUtterance - the maxHypothesesPerUtterance value