'Overview documentation for top level Heapy object.
Provides a listing of the available attributes.
Accessing the attribute name on the doc objects gives further info, eg:
>>> hp.doc.heap
gives doc for the heap method when hp is the top level Heapy object.
References may be embedded in the documentations. To access a
reference, opening up a web browser with the doc for it one can do eg:
>>> hp.doc.heap[1]
The reference number 0 is special. If it is provided, it is the
reference to the html doc for the described object itself. So to see
in the web browser the doc for the heap method one can do:
>>> hp.doc.heap[0]
References
[0] heapy_Use.html#heapykinds.Use.doc'

def _get_doc(self):

    return self._root.guppy.etc.Help.dir(self, header='Top    level    interface    to    Heapy.    Available    attributes:', footer=('Use    eg:    %sdoc.<attribute>    for    info    on    <attribute>.' % self.reprefix))
