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							- import copyObject from './_copyObject.js';
 
- import createAssigner from './_createAssigner.js';
 
- import keysIn from './keysIn.js';
 
- /**
 
-  * This method is like `_.assignIn` except that it accepts `customizer`
 
-  * which is invoked to produce the assigned values. If `customizer` returns
 
-  * `undefined`, assignment is handled by the method instead. The `customizer`
 
-  * is invoked with five arguments: (objValue, srcValue, key, object, source).
 
-  *
 
-  * **Note:** This method mutates `object`.
 
-  *
 
-  * @static
 
-  * @memberOf _
 
-  * @since 4.0.0
 
-  * @alias extendWith
 
-  * @category Object
 
-  * @param {Object} object The destination object.
 
-  * @param {...Object} sources The source objects.
 
-  * @param {Function} [customizer] The function to customize assigned values.
 
-  * @returns {Object} Returns `object`.
 
-  * @see _.assignWith
 
-  * @example
 
-  *
 
-  * function customizer(objValue, srcValue) {
 
-  *   return _.isUndefined(objValue) ? srcValue : objValue;
 
-  * }
 
-  *
 
-  * var defaults = _.partialRight(_.assignInWith, customizer);
 
-  *
 
-  * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
 
-  * // => { 'a': 1, 'b': 2 }
 
-  */
 
- var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
 
-   copyObject(source, keysIn(source), object, customizer);
 
- });
 
- export default assignInWith;
 
 
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