def test_scoretools_VerticalMoment___init___01():
r'''Initializes vertical moment from empty input.
'''
vertical_moment = abjad.VerticalMoment()
assert repr(vertical_moment) == 'VerticalMoment()'
def _get_vertical_moment_at(self, offset):
import abjad
return abjad.VerticalMoment(self, offset)
def _get_vertical_moment(self, governor=None):
import abjad
offset = abjad.inspect(self).get_timespan().start_offset
if governor is None:
governor = abjad.inspect(self).get_parentage().root
return abjad.VerticalMoment(governor, offset)