ReferenceTypesEventsDragWillAcceptEventDragWillAcceptEventEvent payload for flet.DragTarget.on_will_accept.Inherits: EventPropertiesaccept - Whether this target will accept the dragged source.src - Source Draggable control resolved from src_id.src_id - ID of the Draggable source control, if available.Propertiesbuildacceptinstance-attributeCopyaccept: boolWhether this target will accept the dragged source.buildsrcclass-attributeinstance-attributeCopysrc: Draggable = field(init=False)Source Draggable control resolved from src_id.buildsrc_idinstance-attributeCopysrc_id: Optional[int]ID of the Draggable source control, if available.