def tail(file, lines=<NUM_LIT:10>):
return Tailer(file).tail(lines)<EOL>
\
    Return the last lines of the file.

    >>> try:
    ...    from StringIO import StringIO
    ... except ImportError:
    ...    from io import StringIO
    >>> f = StringIO()
    >>> for i in range(11):
    ...     _ = f.write('Line %d\\n' % (i + 1))
    >>> tail(f, 3)
    ['Line 9', 'Line 10', 'Line 11']