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							- 'use strict';
 
- require('../../modules/es.object.to-string');
 
- require('../../modules/es.map');
 
- require('../../modules/esnext.map.key-by');
 
- require('../../modules/esnext.map.delete-all');
 
- require('../../modules/esnext.map.emplace');
 
- require('../../modules/esnext.map.every');
 
- require('../../modules/esnext.map.filter');
 
- require('../../modules/esnext.map.find');
 
- require('../../modules/esnext.map.find-key');
 
- require('../../modules/esnext.map.includes');
 
- require('../../modules/esnext.map.key-of');
 
- require('../../modules/esnext.map.map-keys');
 
- require('../../modules/esnext.map.map-values');
 
- require('../../modules/esnext.map.merge');
 
- require('../../modules/esnext.map.reduce');
 
- require('../../modules/esnext.map.some');
 
- require('../../modules/esnext.map.update');
 
- var call = require('../../internals/function-call');
 
- var isCallable = require('../../internals/is-callable');
 
- var path = require('../../internals/path');
 
- var Map = path.Map;
 
- var mapKeyBy = Map.keyBy;
 
- module.exports = function keyBy(source, iterable, keyDerivative) {
 
-   return call(mapKeyBy, isCallable(this) ? this : Map, source, iterable, keyDerivative);
 
- };
 
 
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