Question: 015 5 str methods: upper or lower. Complete this function according to its docstring description. i def upper_lower(s: str) -> bool: 2 Return True

015 5 str methods: upper or lower. Complete this function according

015 5 str methods: upper or lower. Complete this function according to its docstring description. i def upper_lower(s: str) -> bool: 2 "" "Return True if and only if there is at least one alphabetic character 3 in s and the alphabetic characters in s are either all uppercase or all 4 lowercase. 6 7 >>> upper_lower('abc') True >>> upper_lower('abcXYZ') False >>> upper_lower( 'XYZ') True 9 10 11 12

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