/**
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
/**
 * @module engine/model/typecheckable
 */
import type { Marker } from './markercollection.js';
import { type ModelDocumentFragment } from './documentfragment.js';
import { type ModelDocumentSelection } from './documentselection.js';
import { type ModelElement } from './element.js';
import { type ModelLivePosition } from './liveposition.js';
import { type ModelLiveRange } from './liverange.js';
import { type ModelNode } from './node.js';
import { type ModelPosition } from './position.js';
import { type ModelRange } from './range.js';
import { type ModelRootElement } from './rootelement.js';
import { type ModelSelection } from './selection.js';
import { type ModelText } from './text.js';
import { type ModelTextProxy } from './textproxy.js';
export declare abstract class ModelTypeCheckable {
    /**
     * Checks whether the object is of type {@link module:engine/model/node~ModelNode} or its subclass.
     *
     * This method is useful when processing model objects that are of unknown type. For example, a function
     * may return a {@link module:engine/model/documentfragment~ModelDocumentFragment} or a {@link module:engine/model/node~ModelNode}
     * that can be either a text node or an element. This method can be used to check what kind of object is returned.
     *
     * ```ts
     * someObject.is( 'element' ); // -> true if this is an element
     * someObject.is( 'node' ); // -> true if this is a node (a text node or an element)
     * someObject.is( 'documentFragment' ); // -> true if this is a document fragment
     * ```
     *
     * Since this method is also available on a range of view objects, you can prefix the type of the object with
     * `model:` or `view:` to check, for example, if this is the model's or view's element:
     *
     * ```ts
     * modelElement.is( 'model:element' ); // -> true
     * modelElement.is( 'view:element' ); // -> false
     * ```
     *
     * By using this method it is also possible to check a name of an element:
     *
     * ```ts
     * imageElement.is( 'element', 'imageBlock' ); // -> true
     * imageElement.is( 'element', 'imageBlock' ); // -> same as above
     * imageElement.is( 'model:element', 'imageBlock' ); // -> same as above, but more precise
     * ```
     *
     * @label NODE
     */
    is(type: 'node' | 'model:node'): this is ModelNode | ModelElement | ModelText | ModelRootElement;
    /**
     * Checks whether the object is of type {@link module:engine/model/element~ModelElement} or its subclass.
     *
     * ```ts
     * element.is( 'element' ); // -> true
     * element.is( 'node' ); // -> true
     * element.is( 'model:element' ); // -> true
     * element.is( 'model:node' ); // -> true
     *
     * element.is( 'view:element' ); // -> false
     * element.is( 'documentSelection' ); // -> false
     * ```
     *
     * Assuming that the object being checked is an element, you can also check its
     * {@link module:engine/model/element~ModelElement#name name}:
     *
     * ```ts
     * element.is( 'element', 'imageBlock' ); // -> true if this is an <imageBlock> element
     * text.is( 'element', 'imageBlock' ); -> false
     * ```
     *
     * @label ELEMENT
     */
    is(type: 'element' | 'model:element'): this is ModelElement | ModelRootElement;
    /**
     * Checks whether the object is of type {@link module:engine/model/rootelement~ModelRootElement}.
     *
     * ```ts
     * rootElement.is( 'rootElement' ); // -> true
     * rootElement.is( 'element' ); // -> true
     * rootElement.is( 'node' ); // -> true
     * rootElement.is( 'model:rootElement' ); // -> true
     * rootElement.is( 'model:element' ); // -> true
     * rootElement.is( 'model:node' ); // -> true
     *
     * rootElement.is( 'view:element' ); // -> false
     * rootElement.is( 'documentFragment' ); // -> false
     * ```
     *
     * Assuming that the object being checked is an element, you can also check its
     * {@link module:engine/model/element~ModelElement#name name}:
     *
     * ```ts
     * rootElement.is( 'rootElement', '$root' ); // -> same as above
     * ```
     *
     * @label ROOT_ELEMENT
     */
    is(type: 'rootElement' | 'model:rootElement'): this is ModelRootElement;
    /**
     * Checks whether the object is of type {@link module:engine/model/text~ModelText}.
     *
     * ```ts
     * text.is( '$text' ); // -> true
     * text.is( 'node' ); // -> true
     * text.is( 'model:$text' ); // -> true
     * text.is( 'model:node' ); // -> true
     *
     * text.is( 'view:$text' ); // -> false
     * text.is( 'documentSelection' ); // -> false
     * ```
     *
     * **Note:** Until version 20.0.0 this method wasn't accepting `'$text'` type. The legacy `'text'` type is still
     * accepted for backward compatibility.
     *
     * @label TEXT
     */
    is(type: '$text' | 'model:$text'): this is ModelText;
    /**
     * Checks whether the object is of type {@link module:engine/model/position~ModelPosition} or its subclass.
     *
     * ```ts
     * position.is( 'position' ); // -> true
     * position.is( 'model:position' ); // -> true
     *
     * position.is( 'view:position' ); // -> false
     * position.is( 'documentSelection' ); // -> false
     * ```
     *
     * @label POSITION
     */
    is(type: 'position' | 'model:position'): this is ModelPosition | ModelLivePosition;
    /**
     * Checks whether the object is of type {@link module:engine/model/liveposition~ModelLivePosition}.
     *
     * ```ts
     * livePosition.is( 'position' ); // -> true
     * livePosition.is( 'model:position' ); // -> true
     * livePosition.is( 'liveposition' ); // -> true
     * livePosition.is( 'model:livePosition' ); // -> true
     *
     * livePosition.is( 'view:position' ); // -> false
     * livePosition.is( 'documentSelection' ); // -> false
     * ```
     *
     * @label LIVE_POSITION
     */
    is(type: 'livePosition' | 'model:livePosition'): this is ModelLivePosition;
    /**
     * Checks whether the object is of type {@link module:engine/model/range~ModelRange} or its subclass.
     *
     * ```ts
     * range.is( 'range' ); // -> true
     * range.is( 'model:range' ); // -> true
     *
     * range.is( 'view:range' ); // -> false
     * range.is( 'documentSelection' ); // -> false
     * ```
     *
     * @label RANGE
     */
    is(type: 'range' | 'model:range'): this is ModelRange | ModelLiveRange;
    /**
     * Checks whether the object is of type {@link module:engine/model/liverange~ModelLiveRange}.
     *
     * ```ts
     * liveRange.is( 'range' ); // -> true
     * liveRange.is( 'model:range' ); // -> true
     * liveRange.is( 'liveRange' ); // -> true
     * liveRange.is( 'model:liveRange' ); // -> true
     *
     * liveRange.is( 'view:range' ); // -> false
     * liveRange.is( 'documentSelection' ); // -> false
     * ```
     *
     * @label LIVE_RANGE
     */
    is(type: 'liveRange' | 'model:liveRange'): this is ModelLiveRange;
    /**
     * Checks whether the object is of type {@link module:engine/model/documentfragment~ModelDocumentFragment}.
     *
     * ```ts
     * docFrag.is( 'documentFragment' ); // -> true
     * docFrag.is( 'model:documentFragment' ); // -> true
     *
     * docFrag.is( 'view:documentFragment' ); // -> false
     * docFrag.is( 'element' ); // -> false
     * docFrag.is( 'node' ); // -> false
     * ```
     *
     * @label DOCUMENT_FRAGMENT
     */
    is(type: 'documentFragment' | 'model:documentFragment'): this is ModelDocumentFragment;
    /**
     * Checks whether the object is of type {@link module:engine/model/selection~ModelSelection}
     * or {@link module:engine/model/documentselection~ModelDocumentSelection}.
     *
     * ```ts
     * selection.is( 'selection' ); // -> true
     * selection.is( 'model:selection' ); // -> true
     *
     * selection.is( 'view:selection' ); // -> false
     * selection.is( 'range' ); // -> false
     * ```
     *
     * @label SELECTION
     */
    is(type: 'selection' | 'model:selection'): this is ModelSelection | ModelDocumentSelection;
    /**
     * Checks whether the object is of type {@link module:engine/model/documentselection~ModelDocumentSelection}.
     *
     * ```ts
     * selection.is( 'selection' ); // -> true
     * selection.is( 'documentSelection' ); // -> true
     * selection.is( 'model:selection' ); // -> true
     * selection.is( 'model:documentSelection' ); // -> true
     *
     * selection.is( 'view:selection' ); // -> false
     * selection.is( 'element' ); // -> false
     * selection.is( 'node' ); // -> false
     * ```
     *
     * @label DOCUMENT_SELECTION
     */
    is(type: 'documentSelection' | 'model:documentSelection'): this is ModelDocumentSelection;
    /**
     * Checks whether the object is of type {@link module:engine/model/markercollection~Marker}.
     *
     * ```ts
     * marker.is( 'marker' ); // -> true
     * marker.is( 'model:marker' ); // -> true
     *
     * marker.is( 'view:element' ); // -> false
     * marker.is( 'documentSelection' ); // -> false
     * ```
     *
     * @label MARKER
     */
    is(type: 'marker' | 'model:marker'): this is Marker;
    /**
     * Checks whether the object is of type {@link module:engine/model/textproxy~ModelTextProxy}.
     *
     * ```ts
     * textProxy.is( '$textProxy' ); // -> true
     * textProxy.is( 'model:$textProxy' ); // -> true
     *
     * textProxy.is( 'view:$textProxy' ); // -> false
     * textProxy.is( 'range' ); // -> false
     * ```
     *
     * **Note:** Until version 20.0.0 this method wasn't accepting `'$textProxy'` type. The legacy `'textProxt'` type is still
     * accepted for backward compatibility.
     *
     * @label TEXT_PROXY
     */
    is(type: '$textProxy' | 'model:$textProxy'): this is ModelTextProxy;
    /**
     * Checks whether the object is of type {@link module:engine/model/element~ModelElement} or its subclass and has the specified `name`.
     *
     * ```ts
     * element.is( 'element', 'imageBlock' ); // -> true if this is an <imageBlock> element
     * text.is( 'element', 'imageBlock' ); -> false
     * ```
     *
     * @label ELEMENT_NAME
     */
    is<N extends string>(type: 'element' | 'model:element', name: N): this is (ModelElement | ModelRootElement) & {
        name: N;
    };
    /**
     * Checks whether the object is of type {@link module:engine/model/rootelement~ModelRootElement} and has the specified `name`.
     *
     * ```ts
     * rootElement.is( 'rootElement', '$root' );
     * ```
     *
     * @label ROOT_ELEMENT_NAME
     */
    is<N extends string>(type: 'rootElement' | 'model:rootElement', name: N): this is ModelRootElement & {
        name: N;
    };
}