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- /**
- * @license
- * Copyright 2017 Google LLC
- *
- * 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.
- */
- /**
- * Do a deep-copy of basic JavaScript Objects or Arrays.
- */
- export declare function deepCopy<T>(value: T): T;
- /**
- * Copy properties from source to target (recursively allows extension
- * of Objects and Arrays). Scalar values in the target are over-written.
- * If target is undefined, an object of the appropriate type will be created
- * (and returned).
- *
- * We recursively copy all child properties of plain Objects in the source- so
- * that namespace- like dictionaries are merged.
- *
- * Note that the target can be a function, in which case the properties in
- * the source Object are copied onto it as static properties of the Function.
- *
- * Note: we don't merge __proto__ to prevent prototype pollution
- */
- export declare function deepExtend(target: unknown, source: unknown): unknown;
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