New in version 2.0.
True when timepoint is within the prolated duration of component:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> leaf = staff.leaves[0]
abjad> componenttools.number_is_between_prolated_start_and_stop_offsets_of_component(Duration(1, 16), leaf)
True
abjad> componenttools.number_is_between_prolated_start_and_stop_offsets_of_component(Duration(1, 12), leaf)
True
Otherwise false:
abjad> componenttools.number_is_between_prolated_start_and_stop_offsets_of_component(Duration(1, 4), leaf)
False
Return boolean.