## Fill.opacity property Gets or sets the degree of opacity of the specified fill as a value between 0.0 (clear) and 1.0 (opaque). ```python @property def opacity(self) -> float: ... @opacity.sette...... ```python doc = aw.Document() builder = aw.DocumentBuilder(doc=doc)...insert_shape(shape_type=aw.drawing.ShapeType.CLOUD_CALLOUT, horz_pos=aw.drawing...