def _set_anchor(self, anchor_enum_idx):
"""
Set value of anchor attribute on ``<a:tcPr>`` child element
"""
anchor = MSO_ANCHOR.to_xml(anchor_enum_idx)
if anchor is None:
return self._clear_anchor()
tcPr = self.get_or_add_tcPr()
tcPr.set('anchor', anchor)
def anchor(self):
"""
String held in ``anchor`` attribute of ``<a:tcPr>`` child element of
this ``<a:tc>`` element.
"""
if self.tcPr is None:
return None
anchor = self.tcPr.get('anchor')
return MSO_ANCHOR.from_xml(anchor)
