code: function assignValue$1(object, key, value) {
  	  var objValue = object[key];
  	  if (!(hasOwnProperty$6.call(object, key) && eq$3(objValue, value)) ||
  	      (value === undefined && !(key in object))) {
  	    object[key] = value;
  	  }
  	}
docs: Assigns `value` to `key` of `object` if the existing value is not equivalent
  using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  for equality comparisons.
  
  @private
  @param {Object} object The object to modify.
  @param {string} key The key of the property to assign.
  @param {*} value The value to assign.