export declare const METADATA_TAG_NAMES: Set<string>;
export declare function isMetadataContent(node: Node | null): boolean;
export declare const BLOCK_LEVEL_TAG_NAMES: Set<string>;
export declare function isBlockLevelContent(node: Node | null): boolean;
export declare const PHRASING_CONTENT_TAG_NAMES: Set<string>;
export declare function isPhrasingContent(node: Node | null): boolean;
export declare const PRESENTATIONAL_PHRASING_CONTENT_TAG_NAMES: Set<string>;
export declare function isPresentationalPhrasingContent(node: Node | null): boolean;
export declare const EMBEDDED_CONTENT_TAG_NAMES: Set<string>;
export declare const EDITOR_DATA_LIST_TYPE = "data-editor-list-type";
export declare const EDITOR_DATA_ATTRIBUTE_NAMES: Set<string>;
export declare function isEmbeddedContent(node: Node | null): boolean;
/**
 * Unwraps phrasing content from superfluous containers, typically originating from the clipboard.
 *
 * Examples: a single table with a single table cell, a single list with a single list item.
 */
export declare function unwrapPhrasingContentContainers(container: Node & ParentNode): void;
export declare function wrapContentForParent(newParentNode: Node | null, container: Node): void;
/**
 * Removes attr added for internal purposes
 * @param fragment
 */
export declare function removeEditorDataAttributes(fragment: DocumentFragment): void;