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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_from_content(content):
 """Provides a real file object from file content Converts ``FileStorage``, ``FileIntent`` and ``bytes`` to an actual file. """

    f = content
    if isinstance(content, cgi.FieldStorage):
        f = content.file
    elif isinstance(content, FileIntent):
        f = content._fileobj
    elif isinstance(content, byte_string):
        f = SpooledTemporaryFile(INMEMORY_FILESIZE)
        f.write(content)
    f.seek(0)
    return f