export interface IQueryModifier {
    /**
     * The Web Part properties in the property bag. Corresponds to the isolated 'queryModifierProperties' property in the global property bag.
     */
    properties: any;
    /**
     * Context of the main Web Part
     */
    context: any;
    /**
      * Flag to indicate that no further transformation is necessary when the query was transformed
      * This is checked only on a transformed query and not when a Modifier didn't change the query
    */
    endWhenSuccessfull: boolean;
    /**
     * Method called during the Web Part initialization.
     */
    onInit(): void | Promise<void>;
    /**
     * Modify the querytext and retrieve it
     * @param queryText the querytext
     */
    modifyQuery(queryText: string): Promise<string>;
    /**
     * Returns the data source property pane option fields if any.
     */
    getPropertyPaneGroupsConfiguration(): any[];
    /**
     * Method called when a property pane field in changed in the Web Part.
     * @param propertyPath the property path.
     * @param oldValue the old value.
     * @param newValue the new value.
     */
    onPropertyUpdate(propertyPath: string, oldValue: any, newValue: any): void;
}
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