formatItem, formatMatch, and formatResult are the keys to customizing prompt information. The function of formatItem is to format the items in the list. For example, we add "I" to make the words in the list appear in italics. formatMatch is used in conjunction with formatItem. The function is that due to the use of formatItem, the content in the entry has changed, and what we want to match is the original data, so we use formatMatch to make an adjustment to match the original data. formatResult defines the final returned data. For example, we still need to return the original data, not the formatItem data.
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