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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 _doc_property(klass, prop):
 """Generate the docstring of a property."""

    header = "{klass}.{name}".format(klass=klass.__name__,
                                       name=_name(prop),
                                       )
    docstring = _doc(prop)
    return _concat(header, docstring)