You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: response.rs
    path of file: ./repos/egui/crates/egui/src
    
    the code of the file until where you have to start completion: use std::{any::Any, sync::Arc};

use crate::{
    emath::{Align, Pos2, Rect, Vec2},
    menu, Context, CursorIcon, Id, LayerId, PointerButton, Sense, Ui, WidgetRect, WidgetText,
    NUM_POINTER_BUTTONS,
};

// ----------------------------------------------------------------------------

/// The result of adding a widget to a [`Ui`].
///
/// A [`Response`] lets you know whether or not a widget is being hovered, clicked or dragged.
/// It also lets you easily show a tooltip on hover.
///
/// Whenever something gets added to a [`Ui`], a [`Response`] object is returned.
/// [`ui.add`] returns a [`Response`], as does [`ui.button`], and all similar shortcuts.
// TODO(emilk): we should be using bit sets instead of so many bools
#[derive(Clone, Debug)]
pub struct Response {
    // CONTEXT:
    /// Used for optionally showing a tooltip and checking for more interactions.
    pub ctx: Context,

    // IN:
    /// Which layer the widget is part of.
    pub layer_id: LayerId,

    /// The [`Id`] of the widget/area this response pertains.
    pub id: Id,

    /// The area of the screen we are talking about.
    pub rect: Rect,

    /// The rectangle sensing interaction.
    ///
    /// This is sometimes smaller than [`Self::rect`] because of clipping
    /// (e.g. when inside a scroll area).
    ///
    /// The interact rect may also be slightly larger than the widget rect,
    /// because egui adds half if the item spacing to make the interact rect easier to hit.
    pub interact_rect: Rect,

    /// The senses (click and/or drag) that the widget was interested in (if any).
    pub sense: Sense,

    /// Was the widget enabled?
    /// If `false`, there was no interaction attempted (not even hover).
    #[doc(hidden)]
    pub enabled: bool,

    // OUT:
    /// The pointer is hovering above this widget.
    #[doc(hidd
    
    pub fn union(&self, other: Self) -> Self {
        assert!(self.ctx == other.ctx);
        crate::egui_assert!(
            self.layer_id == other.layer_id,
            "It makes no sense to combine Responses from two different layers"
        );
        Self {
            ctx: other.ctx,
            layer_id: self.layer_id,
            id: self.id,
            rect: self.rect.union(other.rect),
            interact_rect: self.interact_rect.union(other.interact_rect),
            sense: self.sense.union(other.sense),
            enabled: self.enabled || other.enabled,
            contains_pointer: self.contains_pointer || other.contains_pointer,
            hovered: self.hovered || other.hovered,
            highlighted: self.highlighted || other.highlighted,
            clicked: [
                self.clicked[0] || other.clicked[0],
                self.clicked[1] || other.clicked[1],
                self.clicked[2] || other.clicked[2],
                self.clicked[3] || other.clicked[3],
                self.clicked[4] || other.clicked[4],
            ],
            double_clicked: [
                self.double_clicked[0] || other.double_clicked[0],
                self.double_clicked[1] || other.double_clicked[1],
                self.double_clicked[2] || other.double_clicked[2],
                self.double_clicked[3] || other.double_clicked[3],
                self.double_clicked[4] || other.double_clicked[4],
            ],
            triple_clicked: [
                self.triple_clicked[0] || other.triple_clicked[0],
                self.triple_clicked[1] || other.triple_clicked[1],
                self.triple_clicked[2] || other.triple_clicked[2],
                self.triple_clicked[3] || other.triple_clicked[3],
                self.triple_clicked[4] || other.triple_clicked[4],
            ],
            drag_started: self.drag_started || other.drag_started,
            dragged: self.dragged || other.dragged,
            drag_stopped: self.drag_stopped || other.drag_stopped,
            is_pointer_button_down_on: self.is_pointer_button_down_on
                || other.is_pointer_button_down_on,
            interact_pointer_pos: self.interact_pointer_pos.or(other.interact_pointer_pos),
            changed: self.changed || other.changed,
        }
    }