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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 getmethattr(obj, meth):
 """ Returns either the variable value or method invocation """

  if hasmethod(obj, meth):
    return getattr(obj, meth)()
  elif hasvar(obj, meth):
    return getattr(obj, meth)
  return None