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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 mkmanpage(name):
 """Return man page content for the given `cmdln.Cmdln` subclass name."""

    mod_name, class_name = name.rsplit('.', 1)
    mod = __import__(mod_name)
    inst = getattr(mod, class_name)()
    sections = cmdln.man_sections_from_cmdln(inst)
    sys.stdout.write(''.join(sections))