New in version 2.3.
True when expr is component with annotation attached:
abjad> note = Note("c'4")
abjad> marktools.Annotation('foo', 'bar')(note)
Annotation('foo', 'bar')(c'4)
abjad> marktools.is_component_with_annotation_attached(note)
True
False otherwise:
abjad> note = Note("c'4")
abjad> marktools.is_component_with_annotation_attached(note)
False
Return boolean.