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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def file_type(self, value):
 """The MIME type of the content you are attaching :param file_type: The MIME type of the content you are attaching :type file_type FileType, string, optional """

        if isinstance(value, FileType):
            self._file_type = value
        else:
            self._file_type = FileType(value)