/**
 * Copyright (c) 2020-present, Goldman Sachs
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { AbstractPlugin, type Clazz } from '@finos/legend-shared';
import type { PackageableElement } from '../graph/metamodel/pure/packageableElements/PackageableElement.js';
import type { PureModel } from './PureModel.js';
import type { GraphPluginManager } from './GraphPluginManager.js';
import type { Testable } from '../graph/metamodel/pure/test/Testable.js';
export type DeadReferencesCleaner = (graph: PureModel) => void;
export type TestableElementFilter = (element: PackageableElement) => Testable | undefined;
/**
 * Plugins for Pure graph (aka `PureModel`). These plugins concern the operations of the graph alone and
 * should not refer to anything but the graph itself as it would be embedded as part of the graph.
 * For example: if a plugin has to do with grammar, compilation, generation, etc., probably it should not be
 * placed in this class.
 */
export declare abstract class PureGraphPlugin extends AbstractPlugin {
    /**
     * This helps to better type-check for this empty abtract type
     * See https://github.com/finos/legend-studio/blob/master/docs/technical/typescript-usage.md#understand-typescript-structual-type-system
     */
    private readonly _$nominalTypeBrand;
    install(pluginManager: GraphPluginManager): void;
    /**
     * Get the list of supported packageable element classes.
     * This will be used to create extensions to the graph.
     */
    getExtraPureGraphExtensionClasses?(): Clazz<PackageableElement>[];
    /**
     * Get the list of procedures to be done to cleanup dead references in the graph.
     */
    getExtraDeadReferencesCleaners?(): DeadReferencesCleaner[];
    /**
     * Get the list of collectors for testable items
     */
    getExtraTestablesCollectors?(): TestableElementFilter[];
}
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