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var baseFor = require('./_baseFor'),
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    castFunction = require('./_castFunction'),
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    keysIn = require('./keysIn');
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/**
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 * Iterates over own and inherited enumerable string keyed properties of an
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 * object and invokes `iteratee` for each property. The iteratee is invoked
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 * with three arguments: (value, key, object). Iteratee functions may exit
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 * iteration early by explicitly returning `false`.
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 *
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 * @static
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 * @memberOf _
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 * @since 0.3.0
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 * @category Object
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 * @param {Object} object The object to iterate over.
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 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
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 * @returns {Object} Returns `object`.
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 * @see _.forInRight
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 * @example
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 *
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 * function Foo() {
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 *   this.a = 1;
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 *   this.b = 2;
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 * }
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 *
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 * Foo.prototype.c = 3;
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 *
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 * _.forIn(new Foo, function(value, key) {
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 *   console.log(key);
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 * });
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 * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
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 */
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function forIn(object, iteratee) {
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  return object == null
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    ? object
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    : baseFor(object, castFunction(iteratee), keysIn);
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}
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module.exports = forIn;
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