how to test if a string is converted to latin1 in csharp

main.cs
        Here is an example code snippet to test if a string is correctly converted to Latin1 encoding:

        ```
        using System.Text;

        public static bool IsLatin1Encoded(string input)
        {
            byte[] latin1Bytes = Encoding.GetEncoding("ISO-8859-1").GetBytes(input);
            string latin1String = Encoding.GetEncoding("ISO-8859-1").GetString(latin1Bytes);
            return input == latin1String;
        }
        ```

        You can call this function with any input string to test if it is correctly converted to Latin1 encoding. The function returns true if the conversion is successful and false otherwise.
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