New in version 2.3.
Get tempo marks attached to component:
abjad> score = Score([])
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> score.append(staff)
abjad> contexttools.TempoMark(Duration(1, 8), 52)(staff)
TempoMark(Duration(1, 8), 52)(Staff{4})
abjad> f(score)
\new Score <<
\tempo 8=52
\new Staff {
c'8
d'8
e'8
f'8
}
>>
abjad> contexttools.get_tempo_marks_attached_to_component(staff)
(TempoMark(Duration(1, 8), 52)(Staff{4}),)
Return tuple of zero or more tempo marks.