Please answer the following question and return the data in JSON format. The data should include the following fields: info: description text, code: code.

Question: Write a function to find the maximum value in a Python integer array.

Please make sure the JSON format is correct and follows the field requirements. Do not add fields other than info and code. If there is no code in the answer, the code field can be left empty. The word "format" should not appear in your response.
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