Write a python function that will increment a number by 1. The number is passed in as an array of digits and the results is also returned as an array of digits. So if the number is 1937, the parameter will be [1,9,3,7] and the result will be [1,9,3,8]. Explain your solution and try to cover edge case in your first try. There should be exactly 5 paragraphs separated by the markdown divider: ***.
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