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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 hook(klass):
 """ monkey-patch pdb.Pdb class adds a 'vim' (and 'v') command: it switches to debugging with vimpdb """


    if not hasattr(klass, 'do_vim'):
        setupMethod(klass, trace_dispatch)
        klass.__bases__ += (SwitcherToVimpdb, )