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"""|NumberingPart| and closely related objects."""
from ..opc.part import XmlPart
from ..shared import lazyproperty
class NumberingPart(XmlPart):
"""Proxy for the numbering.xml part containing numbering definitions for a document
or glossary."""
@classmethod
def new(cls):
"""Return newly created empty numbering part, containing only the root
``<w:numbering>`` element."""
raise NotImplementedError
@lazyproperty
def numbering_definitions(self):
"""The |_NumberingDefinitions| instance containing the numbering definitions
(<w:num> element proxies) for this numbering part."""
return _NumberingDefinitions(self._element)
class _NumberingDefinitions:
"""Collection of |_NumberingDefinition| instances corresponding to the ``<w:num>``
elements in a numbering part."""
def __init__(self, numbering_elm):
super(_NumberingDefinitions, self).__init__()
self._numbering = numbering_elm
def __len__(self):
return len(self._numbering.num_lst)
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