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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 _platform_is_windows(platform=sys.platform):
 """Is the current OS a Windows?"""

        matched = platform in ('cygwin', 'win32', 'win64')
        if matched:
            error_msg = "Windows isn't supported yet"
            raise OSError(error_msg)
        return matched