/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { InjectionToken, Component, ViewChild, ElementRef, ChangeDetectionStrategy, ViewEncapsulation, ChangeDetectorRef, EventEmitter, Inject, Optional, NgModule, Injectable, Injector, SkipSelf, TemplateRef, ɵɵdefineInjectable, ɵɵinject, INJECTOR } from '@angular/core';
import { animate, state, style, transition, trigger } from '@angular/animations';
import { AnimationCurves, AnimationDurations, MatCommonModule } from '@angular/material/core';
import { BasePortalOutlet, CdkPortalOutlet, PortalModule, ComponentPortal, PortalInjector, TemplatePortal } from '@angular/cdk/portal';
import { BreakpointObserver, Breakpoints } from '@angular/cdk/layout';
import { DOCUMENT, CommonModule, Location } from '@angular/common';
import { FocusTrapFactory } from '@angular/cdk/a11y';
import { OverlayModule, Overlay, OverlayConfig } from '@angular/cdk/overlay';
import { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';
import { merge, Subject, of } from 'rxjs';
import { filter, take } from 'rxjs/operators';
import { Directionality } from '@angular/cdk/bidi';

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Injection token that can be used to access the data that was passed in to a bottom sheet.
 * @type {?}
 */
const MAT_BOTTOM_SHEET_DATA = new InjectionToken('MatBottomSheetData');
/**
 * Configuration used when opening a bottom sheet.
 * @template D
 */
class MatBottomSheetConfig {
    constructor() {
        /**
         * Data being injected into the child component.
         */
        this.data = null;
        /**
         * Whether the bottom sheet has a backdrop.
         */
        this.hasBackdrop = true;
        /**
         * Whether the user can use escape or clicking outside to close the bottom sheet.
         */
        this.disableClose = false;
        /**
         * Aria label to assign to the bottom sheet element.
         */
        this.ariaLabel = null;
        /**
         * Whether the bottom sheet should close when the user goes backwards/forwards in history.
         * Note that this usually doesn't include clicking on links (unless the user is using
         * the `HashLocationStrategy`).
         */
        this.closeOnNavigation = true;
        // Note that this is disabled by default, because while the a11y recommendations are to focus
        // the first focusable element, doing so prevents screen readers from reading out the
        // rest of the bottom sheet content.
        /**
         * Whether the bottom sheet should focus the first focusable element on open.
         */
        this.autoFocus = false;
        /**
         * Whether the bottom sheet should restore focus to the
         * previously-focused element, after it's closed.
         */
        this.restoreFocus = true;
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Animations used by the Material bottom sheet.
 * @type {?}
 */
const matBottomSheetAnimations = {
    /**
     * Animation that shows and hides a bottom sheet.
     */
    bottomSheetState: trigger('state', [
        state('void, hidden', style({ transform: 'translateY(100%)' })),
        state('visible', style({ transform: 'translateY(0%)' })),
        transition('visible => void, visible => hidden', animate(`${AnimationDurations.COMPLEX} ${AnimationCurves.ACCELERATION_CURVE}`)),
        transition('void => visible', animate(`${AnimationDurations.EXITING} ${AnimationCurves.DECELERATION_CURVE}`)),
    ])
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
// TODO(crisbeto): consolidate some logic between this, MatDialog and MatSnackBar
/**
 * Internal component that wraps user-provided bottom sheet content.
 * \@docs-private
 */
class MatBottomSheetContainer extends BasePortalOutlet {
    /**
     * @param {?} _elementRef
     * @param {?} _changeDetectorRef
     * @param {?} _focusTrapFactory
     * @param {?} breakpointObserver
     * @param {?} document
     * @param {?} bottomSheetConfig
     */
    constructor(_elementRef, _changeDetectorRef, _focusTrapFactory, breakpointObserver, document, bottomSheetConfig) {
        super();
        this._elementRef = _elementRef;
        this._changeDetectorRef = _changeDetectorRef;
        this._focusTrapFactory = _focusTrapFactory;
        this.bottomSheetConfig = bottomSheetConfig;
        /**
         * The state of the bottom sheet animations.
         */
        this._animationState = 'void';
        /**
         * Emits whenever the state of the animation changes.
         */
        this._animationStateChanged = new EventEmitter();
        /**
         * Element that was focused before the bottom sheet was opened.
         */
        this._elementFocusedBeforeOpened = null;
        this._document = document;
        this._breakpointSubscription = breakpointObserver
            .observe([Breakpoints.Medium, Breakpoints.Large, Breakpoints.XLarge])
            .subscribe((/**
         * @return {?}
         */
        () => {
            this._toggleClass('mat-bottom-sheet-container-medium', breakpointObserver.isMatched(Breakpoints.Medium));
            this._toggleClass('mat-bottom-sheet-container-large', breakpointObserver.isMatched(Breakpoints.Large));
            this._toggleClass('mat-bottom-sheet-container-xlarge', breakpointObserver.isMatched(Breakpoints.XLarge));
        }));
    }
    /**
     * Attach a component portal as content to this bottom sheet container.
     * @template T
     * @param {?} portal
     * @return {?}
     */
    attachComponentPortal(portal) {
        this._validatePortalAttached();
        this._setPanelClass();
        this._savePreviouslyFocusedElement();
        return this._portalOutlet.attachComponentPortal(portal);
    }
    /**
     * Attach a template portal as content to this bottom sheet container.
     * @template C
     * @param {?} portal
     * @return {?}
     */
    attachTemplatePortal(portal) {
        this._validatePortalAttached();
        this._setPanelClass();
        this._savePreviouslyFocusedElement();
        return this._portalOutlet.attachTemplatePortal(portal);
    }
    /**
     * Begin animation of bottom sheet entrance into view.
     * @return {?}
     */
    enter() {
        if (!this._destroyed) {
            this._animationState = 'visible';
            this._changeDetectorRef.detectChanges();
        }
    }
    /**
     * Begin animation of the bottom sheet exiting from view.
     * @return {?}
     */
    exit() {
        if (!this._destroyed) {
            this._animationState = 'hidden';
            this._changeDetectorRef.markForCheck();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._breakpointSubscription.unsubscribe();
        this._destroyed = true;
    }
    /**
     * @param {?} event
     * @return {?}
     */
    _onAnimationDone(event) {
        if (event.toState === 'hidden') {
            this._restoreFocus();
        }
        else if (event.toState === 'visible') {
            this._trapFocus();
        }
        this._animationStateChanged.emit(event);
    }
    /**
     * @param {?} event
     * @return {?}
     */
    _onAnimationStart(event) {
        this._animationStateChanged.emit(event);
    }
    /**
     * @private
     * @param {?} cssClass
     * @param {?} add
     * @return {?}
     */
    _toggleClass(cssClass, add) {
        /** @type {?} */
        const classList = this._elementRef.nativeElement.classList;
        add ? classList.add(cssClass) : classList.remove(cssClass);
    }
    /**
     * @private
     * @return {?}
     */
    _validatePortalAttached() {
        if (this._portalOutlet.hasAttached()) {
            throw Error('Attempting to attach bottom sheet content after content is already attached');
        }
    }
    /**
     * @private
     * @return {?}
     */
    _setPanelClass() {
        /** @type {?} */
        const element = this._elementRef.nativeElement;
        /** @type {?} */
        const panelClass = this.bottomSheetConfig.panelClass;
        if (Array.isArray(panelClass)) {
            // Note that we can't use a spread here, because IE doesn't support multiple arguments.
            panelClass.forEach((/**
             * @param {?} cssClass
             * @return {?}
             */
            cssClass => element.classList.add(cssClass)));
        }
        else if (panelClass) {
            element.classList.add(panelClass);
        }
    }
    /**
     * Moves the focus inside the focus trap.
     * @private
     * @return {?}
     */
    _trapFocus() {
        if (!this._focusTrap) {
            this._focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement);
        }
        if (this.bottomSheetConfig.autoFocus) {
            this._focusTrap.focusInitialElementWhenReady();
        }
    }
    /**
     * Restores focus to the element that was focused before the bottom sheet was opened.
     * @private
     * @return {?}
     */
    _restoreFocus() {
        /** @type {?} */
        const toFocus = this._elementFocusedBeforeOpened;
        // We need the extra check, because IE can set the `activeElement` to null in some cases.
        if (this.bottomSheetConfig.restoreFocus && toFocus && typeof toFocus.focus === 'function') {
            toFocus.focus();
        }
        if (this._focusTrap) {
            this._focusTrap.destroy();
        }
    }
    /**
     * Saves a reference to the element that was focused before the bottom sheet was opened.
     * @private
     * @return {?}
     */
    _savePreviouslyFocusedElement() {
        this._elementFocusedBeforeOpened = (/** @type {?} */ (this._document.activeElement));
        // The `focus` method isn't available during server-side rendering.
        if (this._elementRef.nativeElement.focus) {
            Promise.resolve().then((/**
             * @return {?}
             */
            () => this._elementRef.nativeElement.focus()));
        }
    }
}
MatBottomSheetContainer.decorators = [
    { type: Component, args: [{selector: 'mat-bottom-sheet-container',
                template: "<ng-template cdkPortalOutlet></ng-template>",
                styles: [".mat-bottom-sheet-container{padding:8px 16px;min-width:100vw;box-sizing:border-box;display:block;outline:0;max-height:80vh;overflow:auto}@media (-ms-high-contrast:active){.mat-bottom-sheet-container{outline:1px solid}}.mat-bottom-sheet-container-large,.mat-bottom-sheet-container-medium,.mat-bottom-sheet-container-xlarge{border-top-left-radius:4px;border-top-right-radius:4px}.mat-bottom-sheet-container-medium{min-width:384px;max-width:calc(100vw - 128px)}.mat-bottom-sheet-container-large{min-width:512px;max-width:calc(100vw - 256px)}.mat-bottom-sheet-container-xlarge{min-width:576px;max-width:calc(100vw - 384px)}"],
                changeDetection: ChangeDetectionStrategy.OnPush,
                encapsulation: ViewEncapsulation.None,
                animations: [matBottomSheetAnimations.bottomSheetState],
                host: {
                    'class': 'mat-bottom-sheet-container',
                    'tabindex': '-1',
                    'role': 'dialog',
                    'aria-modal': 'true',
                    '[attr.aria-label]': 'bottomSheetConfig?.ariaLabel',
                    '[@state]': '_animationState',
                    '(@state.start)': '_onAnimationStart($event)',
                    '(@state.done)': '_onAnimationDone($event)'
                },
            },] },
];
/** @nocollapse */
MatBottomSheetContainer.ctorParameters = () => [
    { type: ElementRef },
    { type: ChangeDetectorRef },
    { type: FocusTrapFactory },
    { type: BreakpointObserver },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },
    { type: MatBottomSheetConfig }
];
MatBottomSheetContainer.propDecorators = {
    _portalOutlet: [{ type: ViewChild, args: [CdkPortalOutlet, { static: true },] }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class MatBottomSheetModule {
}
MatBottomSheetModule.decorators = [
    { type: NgModule, args: [{
                imports: [
                    CommonModule,
                    OverlayModule,
                    MatCommonModule,
                    PortalModule,
                ],
                exports: [MatBottomSheetContainer, MatCommonModule],
                declarations: [MatBottomSheetContainer],
                entryComponents: [MatBottomSheetContainer],
            },] },
];

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Reference to a bottom sheet dispatched from the bottom sheet service.
 * @template T, R
 */
class MatBottomSheetRef {
    /**
     * @param {?} containerInstance
     * @param {?} _overlayRef
     * @param {?=} _location
     */
    constructor(containerInstance, _overlayRef, 
    // @breaking-change 8.0.0 `_location` parameter to be removed.
    _location) {
        this._overlayRef = _overlayRef;
        /**
         * Subject for notifying the user that the bottom sheet has been dismissed.
         */
        this._afterDismissed = new Subject();
        /**
         * Subject for notifying the user that the bottom sheet has opened and appeared.
         */
        this._afterOpened = new Subject();
        this.containerInstance = containerInstance;
        this.disableClose = containerInstance.bottomSheetConfig.disableClose;
        // Emit when opening animation completes
        containerInstance._animationStateChanged.pipe(filter((/**
         * @param {?} event
         * @return {?}
         */
        event => event.phaseName === 'done' && event.toState === 'visible')), take(1))
            .subscribe((/**
         * @return {?}
         */
        () => {
            this._afterOpened.next();
            this._afterOpened.complete();
        }));
        // Dispose overlay when closing animation is complete
        containerInstance._animationStateChanged
            .pipe(filter((/**
         * @param {?} event
         * @return {?}
         */
        event => event.phaseName === 'done' && event.toState === 'hidden')), take(1))
            .subscribe((/**
         * @return {?}
         */
        () => {
            clearTimeout(this._closeFallbackTimeout);
            _overlayRef.dispose();
        }));
        _overlayRef.detachments().pipe(take(1)).subscribe((/**
         * @return {?}
         */
        () => {
            this._afterDismissed.next(this._result);
            this._afterDismissed.complete();
        }));
        merge(_overlayRef.backdropClick(), _overlayRef.keydownEvents().pipe(filter((/**
         * @param {?} event
         * @return {?}
         */
        event => event.keyCode === ESCAPE)))).subscribe((/**
         * @param {?} event
         * @return {?}
         */
        event => {
            if (!this.disableClose &&
                (event.type !== 'keydown' || !hasModifierKey((/** @type {?} */ (event))))) {
                event.preventDefault();
                this.dismiss();
            }
        }));
    }
    /**
     * Dismisses the bottom sheet.
     * @param {?=} result Data to be passed back to the bottom sheet opener.
     * @return {?}
     */
    dismiss(result) {
        if (!this._afterDismissed.closed) {
            // Transition the backdrop in parallel to the bottom sheet.
            this.containerInstance._animationStateChanged.pipe(filter((/**
             * @param {?} event
             * @return {?}
             */
            event => event.phaseName === 'start')), take(1)).subscribe((/**
             * @param {?} event
             * @return {?}
             */
            event => {
                // The logic that disposes of the overlay depends on the exit animation completing, however
                // it isn't guaranteed if the parent view is destroyed while it's running. Add a fallback
                // timeout which will clean everything up if the animation hasn't fired within the specified
                // amount of time plus 100ms. We don't need to run this outside the NgZone, because for the
                // vast majority of cases the timeout will have been cleared before it has fired.
                this._closeFallbackTimeout = setTimeout((/**
                 * @return {?}
                 */
                () => {
                    this._overlayRef.dispose();
                }), event.totalTime + 100);
                this._overlayRef.detachBackdrop();
            }));
            this._result = result;
            this.containerInstance.exit();
        }
    }
    /**
     * Gets an observable that is notified when the bottom sheet is finished closing.
     * @return {?}
     */
    afterDismissed() {
        return this._afterDismissed.asObservable();
    }
    /**
     * Gets an observable that is notified when the bottom sheet has opened and appeared.
     * @return {?}
     */
    afterOpened() {
        return this._afterOpened.asObservable();
    }
    /**
     * Gets an observable that emits when the overlay's backdrop has been clicked.
     * @return {?}
     */
    backdropClick() {
        return this._overlayRef.backdropClick();
    }
    /**
     * Gets an observable that emits when keydown events are targeted on the overlay.
     * @return {?}
     */
    keydownEvents() {
        return this._overlayRef.keydownEvents();
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Injection token that can be used to specify default bottom sheet options.
 * @type {?}
 */
const MAT_BOTTOM_SHEET_DEFAULT_OPTIONS = new InjectionToken('mat-bottom-sheet-default-options');
/**
 * Service to trigger Material Design bottom sheets.
 */
class MatBottomSheet {
    /**
     * @param {?} _overlay
     * @param {?} _injector
     * @param {?} _parentBottomSheet
     * @param {?=} _location
     * @param {?=} _defaultOptions
     */
    constructor(_overlay, _injector, _parentBottomSheet, _location, _defaultOptions) {
        this._overlay = _overlay;
        this._injector = _injector;
        this._parentBottomSheet = _parentBottomSheet;
        this._location = _location;
        this._defaultOptions = _defaultOptions;
        this._bottomSheetRefAtThisLevel = null;
    }
    /**
     * Reference to the currently opened bottom sheet.
     * @return {?}
     */
    get _openedBottomSheetRef() {
        /** @type {?} */
        const parent = this._parentBottomSheet;
        return parent ? parent._openedBottomSheetRef : this._bottomSheetRefAtThisLevel;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set _openedBottomSheetRef(value) {
        if (this._parentBottomSheet) {
            this._parentBottomSheet._openedBottomSheetRef = value;
        }
        else {
            this._bottomSheetRefAtThisLevel = value;
        }
    }
    /**
     * @template T, D, R
     * @param {?} componentOrTemplateRef
     * @param {?=} config
     * @return {?}
     */
    open(componentOrTemplateRef, config) {
        /** @type {?} */
        const _config = _applyConfigDefaults(this._defaultOptions || new MatBottomSheetConfig(), config);
        /** @type {?} */
        const overlayRef = this._createOverlay(_config);
        /** @type {?} */
        const container = this._attachContainer(overlayRef, _config);
        /** @type {?} */
        const ref = new MatBottomSheetRef(container, overlayRef, this._location);
        if (componentOrTemplateRef instanceof TemplateRef) {
            container.attachTemplatePortal(new TemplatePortal(componentOrTemplateRef, (/** @type {?} */ (null)), (/** @type {?} */ ({
                $implicit: _config.data,
                bottomSheetRef: ref
            }))));
        }
        else {
            /** @type {?} */
            const portal = new ComponentPortal(componentOrTemplateRef, undefined, this._createInjector(_config, ref));
            /** @type {?} */
            const contentRef = container.attachComponentPortal(portal);
            ref.instance = contentRef.instance;
        }
        // When the bottom sheet is dismissed, clear the reference to it.
        ref.afterDismissed().subscribe((/**
         * @return {?}
         */
        () => {
            // Clear the bottom sheet ref if it hasn't already been replaced by a newer one.
            if (this._openedBottomSheetRef == ref) {
                this._openedBottomSheetRef = null;
            }
        }));
        if (this._openedBottomSheetRef) {
            // If a bottom sheet is already in view, dismiss it and enter the
            // new bottom sheet after exit animation is complete.
            this._openedBottomSheetRef.afterDismissed().subscribe((/**
             * @return {?}
             */
            () => ref.containerInstance.enter()));
            this._openedBottomSheetRef.dismiss();
        }
        else {
            // If no bottom sheet is in view, enter the new bottom sheet.
            ref.containerInstance.enter();
        }
        this._openedBottomSheetRef = ref;
        return ref;
    }
    /**
     * Dismisses the currently-visible bottom sheet.
     * @return {?}
     */
    dismiss() {
        if (this._openedBottomSheetRef) {
            this._openedBottomSheetRef.dismiss();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        if (this._bottomSheetRefAtThisLevel) {
            this._bottomSheetRefAtThisLevel.dismiss();
        }
    }
    /**
     * Attaches the bottom sheet container component to the overlay.
     * @private
     * @param {?} overlayRef
     * @param {?} config
     * @return {?}
     */
    _attachContainer(overlayRef, config) {
        /** @type {?} */
        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;
        /** @type {?} */
        const injector = new PortalInjector(userInjector || this._injector, new WeakMap([
            [MatBottomSheetConfig, config]
        ]));
        /** @type {?} */
        const containerPortal = new ComponentPortal(MatBottomSheetContainer, config.viewContainerRef, injector);
        /** @type {?} */
        const containerRef = overlayRef.attach(containerPortal);
        return containerRef.instance;
    }
    /**
     * Creates a new overlay and places it in the correct location.
     * @private
     * @param {?} config The user-specified bottom sheet config.
     * @return {?}
     */
    _createOverlay(config) {
        /** @type {?} */
        const overlayConfig = new OverlayConfig({
            direction: config.direction,
            hasBackdrop: config.hasBackdrop,
            disposeOnNavigation: config.closeOnNavigation,
            maxWidth: '100%',
            scrollStrategy: config.scrollStrategy || this._overlay.scrollStrategies.block(),
            positionStrategy: this._overlay.position().global().centerHorizontally().bottom('0')
        });
        if (config.backdropClass) {
            overlayConfig.backdropClass = config.backdropClass;
        }
        return this._overlay.create(overlayConfig);
    }
    /**
     * Creates an injector to be used inside of a bottom sheet component.
     * @private
     * @template T
     * @param {?} config Config that was used to create the bottom sheet.
     * @param {?} bottomSheetRef Reference to the bottom sheet.
     * @return {?}
     */
    _createInjector(config, bottomSheetRef) {
        /** @type {?} */
        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;
        /** @type {?} */
        const injectionTokens = new WeakMap([
            [MatBottomSheetRef, bottomSheetRef],
            [MAT_BOTTOM_SHEET_DATA, config.data]
        ]);
        if (config.direction &&
            (!userInjector || !userInjector.get(Directionality, null))) {
            injectionTokens.set(Directionality, {
                value: config.direction,
                change: of()
            });
        }
        return new PortalInjector(userInjector || this._injector, injectionTokens);
    }
}
MatBottomSheet.decorators = [
    { type: Injectable, args: [{ providedIn: MatBottomSheetModule },] },
];
/** @nocollapse */
MatBottomSheet.ctorParameters = () => [
    { type: Overlay },
    { type: Injector },
    { type: MatBottomSheet, decorators: [{ type: Optional }, { type: SkipSelf }] },
    { type: Location, decorators: [{ type: Optional }] },
    { type: MatBottomSheetConfig, decorators: [{ type: Optional }, { type: Inject, args: [MAT_BOTTOM_SHEET_DEFAULT_OPTIONS,] }] }
];
/** @nocollapse */ MatBottomSheet.ngInjectableDef = ɵɵdefineInjectable({ factory: function MatBottomSheet_Factory() { return new MatBottomSheet(ɵɵinject(Overlay), ɵɵinject(INJECTOR), ɵɵinject(MatBottomSheet, 12), ɵɵinject(Location, 8), ɵɵinject(MAT_BOTTOM_SHEET_DEFAULT_OPTIONS, 8)); }, token: MatBottomSheet, providedIn: MatBottomSheetModule });
/**
 * Applies default options to the bottom sheet config.
 * @param {?} defaults Object containing the default values to which to fall back.
 * @param {?=} config The configuration to which the defaults will be applied.
 * @return {?} The new configuration object with defaults applied.
 */
function _applyConfigDefaults(defaults, config) {
    return Object.assign({}, defaults, config);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

export { MatBottomSheetModule, MAT_BOTTOM_SHEET_DEFAULT_OPTIONS, MatBottomSheet, MAT_BOTTOM_SHEET_DATA, MatBottomSheetConfig, MatBottomSheetContainer, matBottomSheetAnimations, MatBottomSheetRef };
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